Two numbers are less than a third number by 30% and 37%

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Two numbers are less than a third number by 30% and 37% respectively. How much percent is the second number less than the first ?

1. 10
2. 4
3. 3
4. 7

Correct Option: A

Let the third number be 100.
⇒ First number = 70
Second number = 63

Required percent =	70 - 63	× 100
	70

Required percent =	7	× 100 = 10%
	70