1.

DSNL charges a fixed rental of ₹ 350 per month. It allows 200 calls free per month. Each call is charged at ₹ 1.4 when the number of calls exceeds 200 per month and it charges ₹ When the number of calls exceeds 400 per month andso on. A customer made 150 calls in February and 250 calls pin March. By how much per cent the each call is cheaper in ,March than each call in February?

Answer»

0.28
0.25
`18.5%`
NONE of these

ANSWER :A


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