Answer-A2 type ‘P’ pipes can fill a tank in 450 hours, while B2 type ‘Q’ pipes can...

A2 times 450 B2 times 648 A2B2 648450 A2B2 3625 AB 65 A 6B5 10A times 6B type P pipes 10 times 6B5 times 6B 72 B2 Required time B2 times 64872 times B2 9 hrs

Question

A2 type ‘P’ pipes can fill

a tank in 450 hours, while B2 type ‘Q’ pipes can fill the same tank in 648 hours. (10A × 6B) 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 7 hrs

B 6 hrs

C 9 hrs

D 14 hrs

E None of these