Two numbers have a ratio of 5:7 and product of them is 2835. These numbers are:

  1. 45, 63
  2. 35, 81
  3. None of these
  4. 39, 65
Anurag Mishra Professor Asked on 14th December 2015 in Maths.
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1 Answer(s)

Answer: (1) 45, 63

Explanation:-
The ratio of two numbers = 5: 7

Let the two numbers be 5 X and 7 X

The product of the two numbers = 2835
Then, 5 X x 7 X = 2835
35 X^2 = 2835
X^2  =2835/35
X^2 = 81
The square root on both side,
X = 9

The two numbers  are  5 X = 5 x 9 = 45 and 7 X = 7 x 9 = 63

Then, the two numbers are 45, 63.

Hence, the answer is (1) 45, 63.

Anurag Mishra Professor Answered on 15th December 2015.
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