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

Question 11 :

• JAMB 2019

Evaluate \((\frac{6}{0.32} \div \frac{2}{0.084})^{-1}\) correct to 1 decimal place.

A. 1.3
B. 2.5
C. 4.6
D. 3.2

Question 12 :

• JAMB 2019

If \(P = (\frac{Q(R - T)}{15})^{\frac{1}{3}}\), make T the subject of the formula.

A. \(T = \frac{15R - Q}{P^3}\)
B. \(T = R - \frac{15P^3}{Q}\)
C. \(T = \frac{R - 15P^3}{Q}\)
D. \(T = \frac{R + P^3}{15Q}\)

Question 13 :

• JAMB 2019

A man bought a car newly for #1,250,000. He had a crash with the car and later sold it at the rate of #1,085,000. What is the percentage gain or loss of the man?

A. 43.7% loss
B. 13.2% gain
C. 13.2% loss
D. 43.7% gain

Question 14 :

• JAMB 2019

Express \((0.0439 \div 3.62)\) as a fraction.

A. \(\frac{21}{100}\)
B. \(\frac{21}{1000}\)
C. \(\frac{12}{1000}\)
D. \(\frac{12}{100}\)

Question 15 :

• JAMB 2019

A bricklayer charges #1,500 per day for himself and #500 per day for his assistant. If a two bedroom flat was built for #95,000 and the bricklayer worked 10 days more than his assistant, how much did the assistant receive?

A. N20,000
B. N28,000
C. N31,200
D. N41,000