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A student finds the average of ten 2-dig...

A student finds the average of ten 2-digit numbers. While copying numbers, by mistake, he writes one number with its digits interchanged. As a result his answer is 1.8 less than the correct answer. The difference of the digits of the number, in which he made mistake, is :

A

2

B

3

C

4

D

6

Text Solution

Verified by Experts

The correct Answer is:
A
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KIRAN PUBLICATION-AVERAGE-TYPE-V
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