Find Out the Number, If

If the sum of two numbers, one of which is 2/5 times the other is 50, then the numbers are:

  1. 11/7, 235/7
  2. 150/7, 22/7
  3. 240/7,110/7
  4. 250/7, 100/7
Monis Rasool Professor Asked on 28th August 2015 in Maths.
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1 Answer(s)

Answer: (4) 250/7, 100/7

Explanation:-
Let the both numbers are X and Y.
According to the question,
X = 2 Y/5
X + Y = 50        …………….. (1)
Put the value of  X in equation (1),
Then, 2 Y/5 + Y = 50
(2 Y + 5 Y) /5 = 50
7 Y = 50 x 5
Y = 250/7

Put the value of Y in equation (1),
X + 250/7 = 50
X = 50 – 250/7
X = (350 – 250)/7
X = 100/7

Then, the numbers are 250/7 and 100/7

Hence, the answer is (4) 250/7 , 100/7.

Anurag Mishra Professor Answered on 3rd September 2015.
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