Question

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

Answer 1

Correct Answer - 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]