Home › CBSE Class 8 › Mathematics › Direct And Inverse Proportions › If 6 taps fill a tank in 80 minutes, 5 taps take:
If 6 taps fill a tank in 80 minutes, 5 taps take:
A96 minutes
B76 minutes
C86 minutes
D66 minutes
Answer & Solution
Correct answer: A. 96 minutes
1. Taps and time are in inverse proportion.
2. So 80 times 6 equals x times 5.
3. That gives x as 480 by 5, which is 96 minutes.
4. The answer is 96 minutes.
_Source: NCERT Class 8 Mathematics, Ch 11 'Direct and Inverse Proportions'_
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