What will be the Ratio between 1st and 2nd Number? If

If 70% of a number is equal to three-fifth of another number, what is the ratio between the 1st and the 2nd numbers, respectively?

  1. 7:6
  2. 6:7
  3. 3:7
  4. 7:3
Desire Adnan Default Asked on 2nd August 2015 in Maths.
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1 Answer(s)

Answer: (2) 6 : 7
Explanation:-
Let the first number and second number be  X  &  Y .
According to the question,
X x 70/100 = Y x 3/5
7 X/10 = 3 Y /5
7 X x 5 = 3 Y x 10                    (by cross multiplication)
7 X  = 3 x 2 Y
7 X = 6  Y
X /Y = 6/7
Hence,the ratio of 1st & 2nd  is 6 : 7.

Anurag Mishra Professor Answered on 2nd August 2015.
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