Question

A paints a wall in 1 hour and B paints the same wall in 2 hours if both work together how much time will they take to paint the same wall?​

Answer 1

Answer:

A paints a wall in 1 hour=60min.

Therefore,A can paint 1/60th part of the wall in 1 min.

B paints the same wall in 2 hours=120min.

Therefore, can paint 1/120th part of the wall in 1min.

If they both work together:

Then AandB together can paint

=1/60 +1/120 =3/120 =1/40 th part of the wall in 1min.

They can paint the whole wall in 40minutes.

Step-by-step explanation:

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