Mathematics Past Questions and Answers

The price of rice increased from ₦32,000 to ₦40,000. Find the percentage increase.

A phone worth ₦95,000 was sold at a discount of 20%. Find the selling price.

In a Venn diagram:<br/>\[<br/>n(A)=42, \quad n(B)=33, \quad n(A\cap B)=15<br/>\]<br/>Find:<br/>\[<br/>n(A\cup B)<br/>\]

A man’s salary increased by 12% from ₦50,000. Find the new salary.

A school bus originally cost ₦5,000,000 but was sold for ₦4,250,000. Find the percentage decrease.