Question

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

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is D

4

The cost of 20 envelopes = ₹50.
$\therefore$ The cost of one envelope
$=\frac{50}{20}$
= ₹ 2.5

One envelope costs ₹2.5.
So, for ₹10, the number of envelopes that can be purchased is equal to $\frac{10}{2.5}=4$