Two numbers are respectively 30% and 80% more than a third number. What per cent is the first of the

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22 Nov 2021 Number

Two numbers are respectively 30% and 80% more than a third number. What per cent is the first of the second?

OPtion

1. 80%
2. 65%
3. 90%
4. 75%
5. 70%
6. 60%
7. 68%
8. 72%
9. 85%
10. None of the above

Solution

Here, x = 30 and y = 80.
∴ First number = {(100 + ×)/ (100 + y)} x 100% of the second
= {(100 + 30)/ (100 + 80)} x 100% of the second
= (130 / 180)/100
= 72%

Correct Option: 8 Best Solution (3)