Profit and loss percent - Jamb Mathematics Past Questions and Answers

Question 26:

• JAMB 2008

The cost of kerosine per liter increase from N60 to N85. What is the percentage rate of increase?

A. 42%
B. 41%
C. 40%
D. 25%

Question 27:

• JAMB 2009

A man bought a second-hand photocopying machine for N34,000. He serviced is at a cost od N2,000 and then sold it at a profit of 15%. What was the selling price?

A. N37,550
B. N40,400
C. N41,400
D. N42,400

Question 28:

• JAMB 2015

A man with an annual salary of N2000, has allowances of N600. If Income Tax is 5%. How much tax does he pay each year?

A. 15
B. 20
C. 30
D. 25

Question 29:

• JAMB 2015

A man bought a car for N800 and sold it for N520. Find his loss per cent

A. 15%
B. 25%
C. 35%
D. 10%

Question 30:

• JAMB 2015

If duty is levied at 25%, find the duty to be added to a bill of N80.

A. N100
B. N20
C. N80
D. N150