Question

a students gets 60, 50, and 90 makes out of 100 in English , physics and economics respectively .he needs 72% to get a scholarship .how many marks does he needs to get in his final paper math to obtain overall 72%marks ? kindly tell me this solution

Answer 1

Hope it helps you

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Answer 2

The student needs to get 88 marks out of 100 in his final math paper to obtain overall 72% marks

Solution:

Given that:

Marks in English = 60

Marks in physics = 50

Marks in economics = 90

Let's assume marks required in math’s = "x"

Required % = 72. The average of four subjects should be 72

$Average = \frac{sum of marks in english, physics, economics, maths}{number of subjects}$

$72= \frac{60+50+90+x}{4}$

$72 \times 4 = 60 + 50 + 90 + x$

x = 88

Hence student requires 88 marks out of 100 in mathematics