Question

The cost of 20 envelopes is ₹50. How many envelopes can be purchased for ₹10?

• A. 1
• B. 4
• C. 3
• D. 2

Answer 1

The correct option is B

4

Number of envelopes bought for ₹50 = 20
$\therefore$ Number of envelopes that can be bought for ₹1
$=\frac{20}{50}$
$=\frac{2}{5}$

Number of envelopes that can be bought for ₹10 $=\frac{2}{5}\times 10$ = 4