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Question

Kiran estimated that he needed 250 GB data per month, thus he bought a yearly internet plan accordingly. At the end of the 7th month, he realised he consumed only 235 GB data per month. What is the average monthly data (in GB) he can use in the next 5 months according to his internet plan?

A
257
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B
263
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C
271
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D
276
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Solution

The correct option is C 271
Total annual data = 12 × 250 =3000 GB

Data consumed by the end of 7th month = 7 × 235 = 1645 GB

Remaining data = 3000 – 1645 = 1355

Required answer =13555=271GB.

Alternately:
Let A be the average monthly data that can be used in the last 5 months.
250×12=7×235+5×A
⇒ A = 271

Hence, option C is the correct answer.


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