Profit and loss percent - Jamb Mathematics Past Questions and Answers

Question 1:

• JAMB 1979

The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is

A. 1.5
B. 0.8
C. 1.0
D. 1.02
E. 1.05

Question 2:

• JAMB 1979

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

A. N330
B. N396.75
C. N300
D. N293.25
E. N360

Question 3:

• JAMB 2019

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

A. 43.6% loss
B. 35% profit
C. 63.2% profit
D. 28% loss

Question 4:

• 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 5:

• JAMB 2017

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?

A. 60%
B. 32%
C. 25%
D. 20%