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Sunday, 25 October 2026
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Mathematics Past Questions and Answers

Jamb 1987 Mathematics Questions

Question 6:
If the length of a square is increased by 20% while while its width is decreased by 20% to form a rectangle, what is the ratio of the area of the rectangle to the area of the square?
  • A 6 : 5
  • B 25 : 24
  • C 5 : 6
  • D 24 : 25
View Answer & Explanation
Question 7:
Two brothers invested a total of N5,000.00 on a farm project, the farm yield was sold for N 15,000.00 at the end of the season. If the profit was shared in the ratio 2 : 3, what is the difference in the amount to profit received by the brothers?
  • A N2,000.00
  • B N4,000.00
  • C N6,000.00
  • D N10,000.00
View Answer & Explanation
Question 8:
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
  • A N7,840
  • B N6,250.00
  • C N616.00
  • D N5,833.33
View Answer & Explanation
Question 9:
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?
  • A 8%
  • B 10%
  • C 12%
  • D 15%
View Answer & Explanation
Question 10:
Four boys and ten girls can cut a field in 5 hours if the boys work at \(\frac{5}{4}\) the rate at which the girls work. How many boys will be needed to cut the field in 3 hours?
  • A 180
  • B 60
  • C 25
  • D 20
View Answer & Explanation