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Q.

What two parts are generated when we divide 184 into two parts such that one-third of one part may exceed one-seventh of the other part by 8?


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a

72, 34

b

72, 112

c

112, 113

d

14, 15 

answer is B.

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Detailed Solution

Given, we divide 184 into two parts such that one-third of one part may exceed one-seventh of the other part by 8.
Let the two parts be x and y.
According to the question, x3=y7+8.
Also, x+y=184.
y=184-x
substitute above equation in x3=y7+8.
x3=184-x7+8
LCM between any number with one is the number itself.
So, the LCM between 1 and 7 is 7.
x3=184-x+567
7x=3(240-x)
7x=720-3x
10x = 720
x = 72.
The other part is 184-x=112.
Therefore the parts are 72 and 112.
Hence option 2 is correct.
 
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What two parts are generated when we divide 184 into two parts such that one-third of one part may exceed one-seventh of the other part by 8?