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
romanreigns1:
cmon somebody answer l want it
somebody atleast
nobody to help
nobody brainy ??
Answers
Answered by
8
by percentage
72+70+x/120+150+180 × 100= 60
142+X / 450 ×100 = 60
after doing calculation u will get answer
72+70+x/120+150+180 × 100= 60
142+X / 450 ×100 = 60
after doing calculation u will get answer
do it fully
I am not understanding
Answered by
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
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