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A student obtain 75%, 80% and 85% in thr...

A student obtain `75%, 80% and 85%` in three subjects if the marks of another subject are added. Then the average cannot be less than

A

0.6

B

0.65

C

0.8

D

0.9

Text Solution

Verified by Experts

The correct Answer is:
A
Marks obtained from three subjects out of 300 is
75+80+85=240
If the marks of another subject is added, then the marks will be `ge 240` out of 400.
`therefore` Minimum average marks `=(240)/(4)=60%`
[When marks in the fourth subject =0]
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