A) \[2:3:4\]
B) \[6:7:8\]
C) \[6:8:9\]
D) None of these
Correct Answer: A
Solution :
Let rational no. be \[x\] Seat in Math\[=5x\] Seat in Physics\[=7x,\] Seat in Chemistry\[=8x,\] 40% of \[5x=40\times \frac{1}{100}\times 5x=2x\] \[\therefore \]maths\[=7x\] 50% of \[7x=50\times \frac{1}{100}\times 7x=\frac{7x}{2}\]\[\therefore \]physics \[=14x\] \[a:b:c=7x:\frac{21x}{2}:14x=2:3:4\]You need to login to perform this action.
You will be redirected in
3 sec