Question

In a bag there are 64 balls. $\frac{1}{4}$ of the balls are red and the rest are blue in colour. How many balls are blue in colour?

Answer 1

Total number of balls = 64
$\frac{1}{4}$ of the balls are red
Number of red balls = $\frac{1}{4}$ x 64 = 16

Number of blue balls
= Total number of balls - Number of red balls
= 64 - 16
= 48

So, the number of blue coloured balls is 48.