The average marks scored by Ram in 5 tests of Physics is 30. How many marks must he obtain in his next test to make the average 32?
Answer & explanation
Correct answer: option 2
The average marks scored by Ram in 5 tests of Physics = 30
So the total marks of 5 subjects = 30 × 5 = 150
According to the question,
The new average must be = 32
So the subject will be = 6
Now the total marks will be = 32 × 6 = 192
So he need to obtain = 192 - 150 = 42 marks in the new subject.