Question

If Abhimanyu paints 4 walls in 22 3 hours, then the number of similar walls he can paint in 2 hours is: a) 3 b)2 c)3 one by two d) 2 one by two ​

Answer 1

Answer:

Appying a pure unitary method.

1 painter can paint 4 walls in 2/6 hours.

1 painter can paint 1 wall in 2/(6×4) = 1/12hours.

4 painter can paint 1 wall in (1/12)×4 = 1/3 hours.

4 painters can paint 8 walls in (1/3)×8 = 2.66 hours.

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