Latest Bank Exam Aptitude Question SOLUTION: the sum of three nos are 68.if first no and second no are in the ratio of 2:3 and second no and third no are in the ratio of 5:3.then find second number?

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the sum of three nos are 68.if first no and second no are in the ratio of 2:3 and second no and third no are in the ratio of 5:3.then find second number?

Asked In Bank Exam jaya mishra (11 years ago)

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IQBAL MEHDI  (11 years ago)

30 ans.
sol:-
Let x,y,z are the 1st,2nd,3rd numbers then a/c to the problem,
x+y+z=68---(i)
x/y=2/3 -> x=2y/3---(ii)
y/z=5/3 -> z=3y/5---(iii)
putting the value of x and z in equation (i) then we get:
2y/3 + y + 3y/5=68
34y=68*15
y=30 ans.

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Balakrishnan M  (11 years ago)

The ratio of first and second number is 2:3 = 2x:3x
The ratio of second and Third number is 5:3 = 5x:3x
The ratio of first ,second and third number is =10:15:9=10x:15x:9x
The sum of the three numbers are 10x+15x+9x = 68
34x = 68
x = 2
Then the three numbers are 20,30,18.
then the second number is 30

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