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Numerical Ability
Ratio and Proportion
Three persons A, B and C separately have some amount of money. If 1/3rd of A's money is equal to 1/4th of B's amount which equals 1/7th of C's money, then at what times of their total amount is equivalent to C's money?
Read Solution (Total 6)
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- Let a, b and c be A's, B's and C's money respectively.
Then their total amount = a + b + c
Given that, 1/3 rd of a = 1/4th of b = 1/7th of c.
i.e., a/3 = b/4 = c/7
Let a/3 = b/4 = c/7 = k
Then a = 3k, b = 4k and c = 7k
Now, we have to find (a + b + c)/c
(a + b + c)/c = 3k + 4k + 7k / 7k
14k / 7k = 2
i.e., (a + b + c)/c = 2
(a + b + c)/2 = c
i.e., 1/2 times of (a+b+c) is equal to c.
Hence the answer is 1/2. - 9 years agoHelpfull: Yes(16) No(0)
- a:b=3.:4
b:c=4:7
a:b:c=12:16:28
total =56
so total money is 2times of c
- 9 years agoHelpfull: Yes(13) No(0)
- a:b=3:4
b:c=4:7
a:b:c=3:4:7
considered a variable x
now
3x+4x+7x=14x
let p be a proportional constant .
14x*p=7X
k=1/2.
Ans=1/2.
- 9 years agoHelpfull: Yes(6) No(0)
- 43...no idea
- 9 years agoHelpfull: Yes(1) No(2)
- ans is 1623.
- 9 years agoHelpfull: Yes(0) No(7)
- let x ,y,z be a, b. and c's money. then it is given... (x/3)=(y/4)=(z/7) then....(x/z)=(3/7) and (y/z)=(4/7) so (x+y+z)/z=1+(x/z)+(y/z)=1+(3/7)+(4/7)=14/7=2 so z/(x+y+z)=1/2 ans
- 8 years agoHelpfull: Yes(0) No(0)
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