Question

Spout a can be full a flask in 20 minutes and spout b can be full the same flask in 30 minutes respectively. If we open the 2 spout at same time then calculate the time which the two spout will take to fill the flask.

Answer 1

Answer:

i hope it's help to you

see this attachment

Answer 2

Answer:

6/5 minutes

Step-by-step explanation:

spout a in 20 minutes full the flask

then in one minutes 1/20 part of flask will be filled

accordingly same as in spout b in one minutes 1/30 part of the flask will be filled

so,

in one minute spout a & spout be fill the flask part is (1/20) + (1/30) = (20+30)/60 = 50/60 = 5/6 part

then whole part (flask) will be filled in 6/5 minutes