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Rajesh want to chose a best plan for his...

Rajesh want to chose a best plan for his mobile phone. He has 2 options available with him. The first plan of company A, cost Rs 20 per month, with costing an additional 25 paise per minute.
The second plan of company B charge Rs 40 per month, but calls cost 8 paise per minute. These two situations are shown below in the form of linar equations.
The total cost of the two company's are given as :
` y =0.25 x + 20`
`and y = 0.8x + 40`
Where, x is the minutes used any y is the total cost per month.

If Rajesh decides to take first plan and calls for 90 minutes in a month, then how much amount he will have to pay ?

A

Rs 45

B

Rs 42.50

C

Rs 40

D

Rs 20

Text Solution

Verified by Experts

The correct Answer is:
B
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