Mathematics
Medium
Question
Two taps X and Y can fill a tank in 10 hrs. and 15 hrs.respectively. If the both taps are opened together, the tank will be full in_________?
A
3 hrs.
B
4 hrs,
C
5 hrs.
D
6 hrs.
✓ Official correct answer
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A
3 hrs.
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B
4 hrs,
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C
5 hrs.
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D
6 hrs.
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