The average marks of section A are 65 and that of section B

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CDS-II 2018 Elementary Math(PYSP)
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41

M: +1.00/-0.33

The average marks of section A are 65 and that of section B are 70. If the average marks of both the sections combined are 67, then the ratio of number of students of section A to that of section B is

[CDS-II 2018 Elementary Math(PYSP)]

A 3 : 2

B 1 : 3

C 3 : 1

D 2 : 3