Question

4. A positive number is 7 times another number. If 15 is added to both the numbers,
then one of the new number becomes
5
times the other new number. What are the
numbers?
2​

Answer 1

Answer:

Let ,First positive number = 7x

second positive number = x

If 15 is added both numbers then one of the new number becomes 5/2.

5/2 (x+15) = 7x + 15

5x /2 + 75/2 = 7x+ 15

5x/2 -7x = 15 - 75/2

5x - 14x = 30 - 75

- 9x = -45

x = 5

First positive number = 7x =7×5 =35

second positive number = 5

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