Question

Goutam takes 5 hour to paint a wall Gambhir takes 6 hour to paint the same wall .If they work together, how long will they take to paint the wall

Answer 1

they will take 30/11 hours to finish the work

Answer 2

Answer:

Step-by-step explanation:

In case of Gautam,

5 hours work can paint= 1(whole) wall

so, 1 hour can paint=1/5 part of the wall.

Again in case of Gambhir,

6 hrs work can paint= 1(whole) wall

so, 1 hour can paint=1/6 part of the wall.

Total work done in 1 hour= 1/5 +1/6= 11/30 part.

Now,

11/30 part of wall can be painted in= 1 hour

so, 1(whole) wall can be painted in= 1/(11/30)= 30/11 hours.

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