Question

amar takes 6 hours to paint the and akbar takes 3 hours and anthony takes 4 hours to paint the same fence. how much time will it take if they do the work together

Answer 1

Answer:

Gautam takes 5 hours to paint the wall.

In 1 hour, Gautam will paint ( 1 / 5 ) of the wall.

Gambhir takes 6 hours to paint the wall.

In 1 hour, Gambhir will paint ( 1 / 6 ) of the wall.

Adding the part of wall Gautam and Gambhir paint in 1 hour,

( 1/5 + 1/6 )

( 6/30 + 5/30 )

( 11 / 30 )

Hence in 1 hour, Gautam and Gambhir will together paint ( 11 / 30 ) of the wall.

Therefore,

Gautam and Gambhir will together take ( 30 / 11 ) hours i.e. ( \bold{2 \frac{8}{11} }2118 ) hours to paint the wall.