Question

The cost of 22 pens is ₹79.20. What is the cost of 10 such pens?

• A. 36

Answer 1

The correct option is A 36
Cost of 22 pens
= ₹ 79.20
Cost of one pen
= ₹ $\frac{79.20}{22}$
$\therefore$ Cost of 10 pens
= ₹ $\frac{79.20}{22}$ x 10
= ₹ $\frac{792}{22}$
[Decimal point shifts one place to the right when multiplied by 10]
= ₹36