Mathematics Past Questions and Answers

A washing machine costing ₦150,000 was sold at a 12% discount. Find the amount paid.

The number of students in a school increased from 400 to 500. Find the percentage increase.

The value of a car reduced from ₦2,400,000 to ₦2,040,000. Find the percentage decrease.

In a survey of 150 students:<br/>\[<br/>n(A)=80,\quad n(B)=65,\quad n(A\cap B)=30<br/>\]<br/>Find:<br/>\[<br/>n(A' \cap B)<br/>\]

Given:<br/>\[<br/>P=\{2,4,6,8,10\}<br/>\]<br/>and<br/>\[<br/>Q=\{1,2,5,7,10\}<br/>\]<br/>Find:<br/>\[<br/>P\cap Q<br/>\]