1.

BSNL charges a fixed rental of Rs. 350/month. It allows 200 calls free per month. Each call is charged at Rs.1.4 when the number of calls exceeds 200/month and it charges Rs.1.6 when the number of calls exceeds 400/month and so on. A customer made 150 calls in February and 250 calls in March. By how much percent the each call is cheaper in March then each call is February?

A. 28%
B. 25%
C. 18.5%
D. none of these
Answer» B. 25%


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