L2- Fractions and Decimals

X = -1 or 3

Correct Incorrect Correct answer

X = 1 or -3

Correct Incorrect Correct answer

X = 1 or -5

Correct Incorrect Correct answer

X = -1 or 5

Correct Incorrect Correct answer

Convert 3.1415926 to 5 decimal places

3.14160

Correct Incorrect Correct answer

3.14159

Correct Incorrect Correct answer

3.14150

Correct Incorrect Correct answer

3.14200

Correct Incorrect Correct answer

express 62 ÷ 3 as a decimal correct to 3 significant figures

20.6

Correct Incorrect Correct answer

20.667

Correct Incorrect Correct answer

20.67

Correct Incorrect Correct answer

20.7

Correct Incorrect Correct answer

A 5.0g of salt was weighted by Tunde as 5.1g. What is the percentage error?

2.0%

Correct Incorrect Correct answer

0.2%

Correct Incorrect Correct answer

20.0%

Correct Incorrect Correct answer

1.0%

Correct Incorrect Correct answer

Find correct to one decimal place, 0.24633 ÷ 0.0306

8.5

Correct Incorrect Correct answer

8.0

Correct Incorrect Correct answer

1.8

Correct Incorrect Correct answer

8.1

Correct Incorrect Correct answer

If it takes 12 boys 5 hours to cut a field. How many boys will be needed to cut the field in 3 hours?

20

Correct Incorrect Correct answer

18

Correct Incorrect Correct answer

24

Correct Incorrect Correct answer

16

Correct Incorrect Correct answer

By selling 20 oranges for N1.35 a trader makes a profit of 8%. What is his percentage gain or loss if he sells the same 20 oranges for N1.10?

8%

Correct Incorrect Correct answer

10%

Correct Incorrect Correct answer

12%

Correct Incorrect Correct answer

15%

Correct Incorrect Correct answer

A man invests a sum of money at 4% per annum simple invest. After 3 years, the principal amounts to N7,000.00. Find the sum invested

N7,840.00

Correct Incorrect Correct answer

N6,250.00

Correct Incorrect Correct answer

N6,160.00

Correct Incorrect Correct answer

N5,750.00

Correct Incorrect Correct answer

If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of

2/3

Correct Incorrect Correct answer

3/2

Correct Incorrect Correct answer

4/3

Correct Incorrect Correct answer

3/4

Correct Incorrect Correct answer

If a rod of length 250cm is measured as 255cm long in error, what is the percentage error in the measurement?

2%

Correct Incorrect Correct answer

3%

Correct Incorrect Correct answer

4%

Correct Incorrect Correct answer

5%

Correct Incorrect Correct answer

Correct each of the numbers 59.81798 and 0.0746829 to three significant figures and multiply them, giving your answer to three significant figures

4.46

Correct Incorrect Correct answer

4.48

Correct Incorrect Correct answer

4.47

Correct Incorrect Correct answer

4.49

Correct Incorrect Correct answer

Express 37.05 x 0.0042 in standard form

Correct Incorrect Correct answer

A man bought wrist watch for N150 but was only able to sell it for N120. Find the loss percent on the transaction

20%

Correct Incorrect Correct answer

15%

Correct Incorrect Correct answer

30%

Correct Incorrect Correct answer

25%

Correct Incorrect Correct answer

-1

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

A baking recipe calls for 2.5kg of sugar and 4.5kg of flour. With this recipe some cakes were baked using 24.5kg of a mixture of sugar and flour. How much sugar was used?

6.75kg

Correct Incorrect Correct answer

8.25kg

Correct Incorrect Correct answer

8.75kg

Correct Incorrect Correct answer

12.25kg

Correct Incorrect Correct answer

By selling an article for N45.00 a man makes a profit of 8%. For how much should he have sold it in order to make a profit of 32%?

N55.00

Correct Incorrect Correct answer

N52.00

Correct Incorrect Correct answer

N58.00

Correct Incorrect Correct answer

N62.00

Correct Incorrect Correct answer

Which of the following fractions is less than one-third?

22/63

Correct Incorrect Correct answer

4/11

Correct Incorrect Correct answer

15/46

Correct Incorrect Correct answer

33/98

Correct Incorrect Correct answer

0.0022

Correct Incorrect Correct answer

0.00217

Correct Incorrect Correct answer

0.002173

Correct Incorrect Correct answer

0.002172

Correct Incorrect Correct answer

Three brothers in a business deal share the profit at the end of a contract. The first received 1/3 of the profit and the second 2/3 of the remainder. If the third received the remaining N12000.00 how much profit did they share?

N60 000.00

Correct Incorrect Correct answer

N54 000.00

Correct Incorrect Correct answer

N48 000.00

Correct Incorrect Correct answer

N42 000.00

Correct Incorrect Correct answer

Write down the number 0.0052048 correct to three significant figures

0.005

Correct Incorrect Correct answer

0.0052

Correct Incorrect Correct answer

0.00520

Correct Incorrect Correct answer

0.00521

Correct Incorrect Correct answer

1/6

Correct Incorrect Correct answer

13/24

Correct Incorrect Correct answer

11/30

Correct Incorrect Correct answer

2/3

Correct Incorrect Correct answer

Evaluate , correct to 1 decimal place.

0.6

Correct Incorrect Correct answer

6.2

Correct Incorrect Correct answer

6.3

Correct Incorrect Correct answer

0.5

Correct Incorrect Correct answer

3 girls share a number of apples in the ration 5:3:2. If the highest share is 40 apples, find the smallest share

36

Correct Incorrect Correct answer

24

Correct Incorrect Correct answer

16

Correct Incorrect Correct answer

12

Correct Incorrect Correct answer

A woman bought a grinder for N60,000. She sold it at a loss of 15%. How much did she sell it?

N53,000

Correct Incorrect Correct answer

N52,000

Correct Incorrect Correct answer

N51,000

Correct Incorrect Correct answer

N50,000

Correct Incorrect Correct answer

Simplify 2.04 x 3.7 (Leave your answer in 2 decimal place)

7.51

Correct Incorrect Correct answer

7.71

Correct Incorrect Correct answer

5.5

Correct Incorrect Correct answer

7.55

Correct Incorrect Correct answer

Simplify (0.09)² and give your answer correct to 4 significant figures

0.8100

Correct Incorrect Correct answer

0.008100

Correct Incorrect Correct answer

0.08100

Correct Incorrect Correct answer

8.100

Correct Incorrect Correct answer

If a car travels 120km on 45 litres of petrol, how much petrol is needed for a journey of 600km?

120 litres

Correct Incorrect Correct answer

160 litres

Correct Incorrect Correct answer

225 litres

Correct Incorrect Correct answer

245 litres

Correct Incorrect Correct answer

Simplify

2

Correct Incorrect Correct answer

1/3

Correct Incorrect Correct answer

1

Correct Incorrect Correct answer

2/3

Correct Incorrect Correct answer

Solve for t in the equation

Correct Incorrect Correct answer

5

Correct Incorrect Correct answer

Tade bought 200 mangoes at 4 for #2.50. 30 out of the mangoes got spoilt and the remaining were sold at 2 for #2.40. Find the percentage profit or loss.

43.6% loss

Correct Incorrect Correct answer

35% profit

Correct Incorrect Correct answer

63.2% profit

Correct Incorrect Correct answer

28% loss

Correct Incorrect Correct answer

A car dealer bought a second-hand car for of 250,000 and spent N 70,000 refurbishing it. He then sold the car for N400,000. What is the percentage gain?

60%

Correct Incorrect Correct answer

25%

Correct Incorrect Correct answer

32%

Correct Incorrect Correct answer

20%

Correct Incorrect Correct answer

Find the principal which amounts to N5,500 at a simple interest in 5 years at 2% per annum

4900

Correct Incorrect Correct answer

5000

Correct Incorrect Correct answer

4700

Correct Incorrect Correct answer

4000

Correct Incorrect Correct answer

If the simple interest on a sum of money invested at 3% per annum for two and a half years is N123, find the principal.

N820

Correct Incorrect Correct answer

N676.50

Correct Incorrect Correct answer

N1,920

Correct Incorrect Correct answer

N1,640

Correct Incorrect Correct answer

If a rod 10cm in length was measured as 10.5cm, calculate the percentage error

5%

Correct Incorrect Correct answer

10%

Correct Incorrect Correct answer

8%

Correct Incorrect Correct answer

7%

Correct Incorrect Correct answer

Evaluate

4

Correct Incorrect Correct answer

3

Correct Incorrect Correct answer

What is the place value of 9 in the number 3.0492?

9/10000

Correct Incorrect Correct answer

9/1000

Correct Incorrect Correct answer

9/100

Correct Incorrect Correct answer

9/10

Correct Incorrect Correct answer

How many times, correct to the nearest whole number, will a man run round a circular track of diameter 100m to cover a distance of 1000m?

3

Correct Incorrect Correct answer

4

Correct Incorrect Correct answer

5

Correct Incorrect Correct answer

6

Correct Incorrect Correct answer

A school girl spends 1/4 of her pocket money on books and 1/3 on dress. What fraction remains?

7/12

Correct Incorrect Correct answer

1/6

Correct Incorrect Correct answer

5/12

Correct Incorrect Correct answer

2/5

Correct Incorrect Correct answer

Two sisters, Taiwo and Kehinde, own a store. The ratio of Taiwo’s share to Kehinde’s is 11:9. Later Kehinde sells 2/3 of her share to Taiwo for N720.00. Find the value of the store

N1,080

Correct Incorrect Correct answer

N1,320

Correct Incorrect Correct answer

N2,400

Correct Incorrect Correct answer

N3,000

Correct Incorrect Correct answer

Express 495g as a percentage of 16.5kg

3%

Correct Incorrect Correct answer

3.33%

Correct Incorrect Correct answer

30%

Correct Incorrect Correct answer

15%

Correct Incorrect Correct answer

Convert 0.04945 to two significant figures

0.49

Correct Incorrect Correct answer

0.040

Correct Incorrect Correct answer

0.050

Correct Incorrect Correct answer

0.049

Correct Incorrect Correct answer

Express (0.0435/3.62) as a fraction.

21/100

Correct Incorrect Correct answer

12/1000

Correct Incorrect Correct answer

21/1000

Correct Incorrect Correct answer

12/100

Correct Incorrect Correct answer

Evaluate correct to 1 decimal place.

3.2

Correct Incorrect Correct answer

1.3

Correct Incorrect Correct answer

4.6

Correct Incorrect Correct answer

2.5

Correct Incorrect Correct answer

Find the value of correct to 3 significant figures

46.2

Correct Incorrect Correct answer

43.1

Correct Incorrect Correct answer

534

Correct Incorrect Correct answer

431

Correct Incorrect Correct answer

The simple interest on #8550 for 3 years at x% per annum is #4890. Calculate the value of x to the nearest whole number.

19%

Correct Incorrect Correct answer

20%

Correct Incorrect Correct answer

25%

Correct Incorrect Correct answer

19.5%

Correct Incorrect Correct answer

31/50

Correct Incorrect Correct answer

20/31

Correct Incorrect Correct answer

31/20

Correct Incorrect Correct answer

50/31

Correct Incorrect Correct answer

The annual profits of a transport business were divided between the partners A and B in the ratio 3 : 5. If B received N3000 more than A, the total profit was

N8000

Correct Incorrect Correct answer

N24000

Correct Incorrect Correct answer

N12000

Correct Incorrect Correct answer

18000

Correct Incorrect Correct answer

After getting a rise of 15%, a man’s new monthly salary is N345. How much per month did he earn before the increase?

330

Correct Incorrect Correct answer

285

Correct Incorrect Correct answer

315

Correct Incorrect Correct answer

300

Correct Incorrect Correct answer

(3.2)² – (1.8)² equals

7.0

Correct Incorrect Correct answer

7.4

Correct Incorrect Correct answer

3.6

Correct Incorrect Correct answer

6.4

Correct Incorrect Correct answer

L2- Fractions and Decimals

L2- Fractions and Decimals

QEFAS PREP November 27, 2023

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