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A student scores 65, 62 70 marks is 3 su...

A student scores 65, 62 70 marks is 3 subjects. Find the minimum marks scored by him in 4th subject to get an average of 64 minimun.

Text Solution

Verified by Experts

The correct Answer is:
N/a
Let the student scores `x` marks in 4th subject
Then average =`(65+62+70+x)/(4)`
But according to question minimum average should be `64`.
`=>` Average is either 64 or more than 64 is also possible.
`=>(65+62+70+x)/(4) ge 64`
`rArr 197 +x ge 256`
`rArr x ge 59`
`:.` Minimum score in 4th subject =59.
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