Question

If a person takes first plan and calls 90 minutes in a month then how much amount he will have to pay whose cost for a month is given by y=0.25x+20​

Answer 1

Let the price of the turban be Rs. x

Then, total income for 12 months = Rs. (90+x)

⇒ Income for 9 months = =(

12

90+x

)×9=

4

3x+270

Given,

4

3x+270

=65+x

⇒3x+270=4x+260

⇒x= Rs. 10