Question

Susan got 72 marks in English out of 120 and 70 marks in Hindi out of 150 .The maximum marks in the mathematics paper were 180 . If she got 60% marks in all three papers combined how many marks did she get in mathematics The ons is 128 marks i just want the steps to do it

Answer 1

by percentage
72+70+x/120+150+180 × 100= 60
142+X / 450 ×100 = 60
after doing calculation u will get answer

Answer 2

Answer:

Step-by-step explanation:

let the marks obtained in maths be x

total marks obtained by susan=142+x

then

A/Q

60%of 450 =(142+x)

270=142+x

x=270-142

x=128

hence marks obtained in maths=128