67. 11% of a number exceed 7% of the same by 18, then what is the number?
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let the number = x
11 % of the number = 11x / 100
7 % of the the number = 7x/ 100
According to the problem,
11% of a number is exceeds 7% is 18
write the above statement into equation form
11x /100 - 7x / 100 = 18
⇒ (11x - 7x ) /100 = 18
⇒ 4x / 100 = 18
⇒ x = (18 /1 ) × ( 100 / 4 )
after cancellation,
x = 450
∴∴ Required number = x = 450
I hope this will helps
11 % of the number = 11x / 100
7 % of the the number = 7x/ 100
According to the problem,
11% of a number is exceeds 7% is 18
write the above statement into equation form
11x /100 - 7x / 100 = 18
⇒ (11x - 7x ) /100 = 18
⇒ 4x / 100 = 18
⇒ x = (18 /1 ) × ( 100 / 4 )
after cancellation,
x = 450
∴∴ Required number = x = 450
I hope this will helps
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