Question

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 ​

Answer 1

Answer:

193

Step-by-step explanation:

384 is double

192 is double

96 third sub.

Answer 2

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)