Question

Susan got 72 marks in English out of 120 and 70 marks in hindi out of 120> The maximum marks in the mathematics paper were 180.If she 60% marks in all the three papers combined, how many marks did she get in mathematics?

Answer 1

maximum total marks = 120+120+180 = 420

Let us assume x marks are required in Math to make 60%

Marks obtain in all subject = 72+70+x = 142+x

(142+x) should be 60% of 420

hence

142+x = 60% of 420

142+x = 420*60/100 = 252

x = 252-142 = 100

100 marks are required to make 60% score