The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ?
A) 384
B) 96
C) 192
D) 206what what percent marks did Suman score if she scored 92 192
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Answers
Answered by
0
Answer:
193
Step-by-step explanation:
384 is double
192 is double
96 third sub.
Answered by
0
Answer:
2nd subjects marks =2x=192
so answer is c) 192
Step-by-step explanation:
The first subject marks is twice the second and the second subject marks is twice the third.
let the 3rd subject marks =x
let 2nd subjects marks = y=2x
let 1st subjects marks =z=2(2x)=4x
average marks =(x+2x+4x)/3=224
- x+2x+4x=224*3
- 7x=672
- x=672/7=96
- 2x=96*2=192
- 4x=4*96=384
percent marks did Suman score if she scored 92 192
% OF MARKS=92/192*100=47%(approx)
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