Question

Cost of a dozen balls is ₹36, what is the cost of 1 ball​

Answer 1

:⟹ 1 dozen = 12 balls

so,

cost of 12 ball = ₹36

cost of 1 ball = (?)

we can use here cross multiply method :-

$</p><p> = \frac{1 \times 36}{12} \\ \\ = \frac{36}{12} \: \: \: \: \: \: \: \: \\ \\ = ₹3 \: \: \: \: \: \: \: \: \:$

I hope it helps you