Question

A2 type ‘P’ pipes can fill a tank in 640 hours, while B2 type ‘Q’ pipes can fill the same tank in 490 hours. (10A × 4

  • B type ‘P’ pipes can fill the same tank in how many hours? (Efficiency of a type P and a type Q pipe is same)
A 10 hrs
B 15 hrs
C 12 hrs
D 14 hrs
E None of these
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