Mathematics Past Questions and Answers

Simplify \(\frac{1\frac{1}{2}}{2 \div \frac{1}{4} \text{of } 32}\)

A \(\frac{3}{256}\)
B \(\frac{3}{32}\)
C 6
D 85

Question 22:

A 5.0g of salt was weighted by Tunde as 5.1g. What is the percentage error?

A 20
B 2
C 1.1
D 0.2

Question 23:

Two sisters, Taiwo and Keyinde, own a store. The ratio of Taiwo's share to Kehinde's is 11:9. Later, Keyinde sells \(\frac{2}{3}\) of her share to Taiwo for N720.00. Find the value of the store.

A N1,080.00
B N2,400.00
C N3,000.00
D N3,600.00

Question 24:

A basket contain green, black and blue balls in the ratio 5 : 2 : 1. If there are 10 blue balls. Find the corresponding new ratio when 10 green and 10 black balls are removed from the basket

A 1 : 1 : 1
B 4 : 2 : 1
C 5 : 1 : 1
D 4 : 1 : 1

Question 25:

A tax payer is allowed \(\frac{1}{8}\)th of his income tax-free, and pays 20% on the remainder. If he pays N490.00 tax, what is his income?

A N560.00
B N2,450.00
C N2,800.00
D N3,920.00