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. The per cent by which the second number is less than the first is

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

Correct Option: A

Let Third number = 100
First number = 70
Second number = 63

∴ Required percentage =	First number - Second number	× 100 %
	Second number

∴ Required percentage =	7	× 100 = 10
	70