A student finds the average of 10 positive integers. Each integer contains two digits. By mistake, the student interchanges the digits of one number say mn for nm. Due to this, the new calculated average becomes 9/5 less than the previous one. What is the difference between the two digits m and n?
A. 2
B. 4
C. 6
D. 8
E. 10
The OA is A.
A. 2
B. 4
C. 6
D. 8
E. 10
The OA is A.
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Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.
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Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.
"Keep Walking" - Johnny Walker
