Two taps A and B can fill a tank in 15 min and 20 min, respectively. If both the taps are opened simultaneously, then in how much time can the empty tank be filled?

Question

Two taps A and B can fill a tank in 15 min and 20 min, respectively. If both the taps are opened simultaneously, then in how much time can the empty tank be filled? (A) 8 (4/7) h (B) 8 min (C) 8 (4/7) min (D) 16 min

Tardigrade Admin · Accepted Answer

Find the part of the tank filled by A and B together in 1 min.

Q. Two taps $A$ and $B$ can fill a tank in $15 min$ and $20 min$ , respectively. If both the taps are opened simultaneously, then in how much time can the empty tank be filled?

$8 \frac{4}{7} h$

$8 min$

$8 \frac{4}{7} min$

$16 min$

Find the part of the tank filled by $A$ and $B$ together in $1 min$ .

Q. Two taps A and B can fill a tank in 15min and 20min, respectively. If both the taps are opened simultaneously, then in how much time can the empty tank be filled?

874​h

8min

874​min

16min