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Question
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?
Options:
A .  1668
B .  1500
C .  1800
D .  1750
E .  none of these
Answer: Option B
:
B
as; 4000 minutes can be calculated as (1725*0.8)+(2000) = Rs 33802500 minutes can be calculated as (1725*0.8)+(500) = Rs 1880Difference = 3380-1880 = 1500

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