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Numerical Ability
Ratio and Proportion
The ratio of two number is 3:8 and their difference is 115. The greater number is?
[A] 69
[C] 184
[B] 115
[D] 280
Read Solution (Total 5)
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- OPTION C 184
8x-3x=115
5x=115
x=23
greatest number=8x=8*23=184 - 12 years agoHelpfull: Yes(30) No(0)
- option (C) - 184
- 10 years agoHelpfull: Yes(1) No(1)
- let the two numbers be x & y
the 1st equation is :- x/y=3/8
2nd equation is :- x-y = 115
or , x = 3y/8
Now putting the value of x in 2nd equation , we get
3y/8 - y = 115
on solving we get y = -184
putting the value of y in 1st eqn we get x = -69
so the greater number is -69 . hence option [A] is the answer
- 8 years agoHelpfull: Yes(0) No(0)
- let suppose no. is x
difference of ratio 8x-3x=115
5x=115
x=23
as we have taken
8x so 8*23=184
ANS:184 - 8 years agoHelpfull: Yes(0) No(0)
- 184
x=23
and 3/8=now/before - 8 years agoHelpfull: Yes(0) No(0)
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