Fractions Decimals Approximations And Percentages - Mathematics Jamb Past Questions and Answers

Question 16 :

• JAMB 2019

A factory worker earns #50,000 per month out of which he spends 15% on his children's education, #13,600 on Food, 3% on electricity and uses the rest for his personal purpose. How much does he have left?

A. N21,850
B. N18,780
C. N27,400
D. N32,500

Question 17 :

• JAMB 2018

Approximate 0.9875 to 1 decimal place.

A. 1.1
B. 1.0
C. 0.9
D. 0.10

Question 18 :

• JAMB 2018

Simplify 25\(\frac{1}{2}\) x 8\(\frac{-2}{3}\)

A. 1\(\frac{1}{4}\)
B. 2\(\frac{1}{4}\)
C. 6
D. 10

Question 19 :

• JAMB 2018

Convert 0.04945 to two significant figures

A. 0.040
B. 0.049
C. 0.050
D. 0.49

Question 20 :

• JAMB 2018

Express 495g as a percentage of 16.5kg

A. 3%
B. 3 \(\frac{1}{3}\)%
C. 15%
D. 30%