Question

the cost of 15 envelope is rupees 37.50 how many envelopes can be bought for rupees 300 what will be the cost of 20 envelopes

Answer 1

hey there

⇒ cost of 15 envelops = 37.50

∴ cost of 1 envelope = 37.50 ÷ 15

= 2.5 rupees

case 1

total amount of money = 300

cost of 1 envelope = 2.5

∴ number of envelopes that can be bought

= total amount of money ÷ cost of 1 envelope

=300 ÷ 2.5

= 120

case 2

cost of 1 envelope = 2.5

number of envelopes to be bought = 20

∴ cost of 20 envelopes

= cost of 1 envelope × number of envelopes to be bought

= 2.5 × 20

= 50 rupees

now..

answer 1

the number of envelopes that can be bought wuth 300 rupees = 120

answer 2

the cost of 20 envelopes = 50 rupees