The average of the test scores of a class of 'm' students is 70 and that of 'n' students is 91. When the scores of both the classes are combinde, the average is 80. What is n/m ?

The average of the test scores of a class of 'm' students is 70 and th

1.	The average of the test scores of a class of 'm' students is 70 and that of 'n' students is 91. When the scores of both the classes are combinde, the average is 80. What is n/m ?
A.	11/10
B.	13/10
C.	10/13
D.	10/11
Answer» E.

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The average of the test scores of a class of 'm' students is 70 and that of 'n' students is 91. When the scores of both the classes are combinde, the average is 80. What is n/m ?

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