What is the difference in the telephone bill over 4 months, if the number of minutes for the first period is 4000 and the number of minutes for the second period is 2500?

1668

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1500

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1800

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1750

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none of these

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Solution

The correct option is B 1500
as; 4000 minutes can be calculated as (17250.8)+(2000) = Rs 3380
2500 minutes can be calculated as (17250.8)+(500) = Rs 1880
Difference = 3380-1880 = 1500

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