Question

pls tell the question​

Answer 1

Answer:

30/11 hours = 2.73 hours

Step-by-step explanation:

Gautam takes 5 hrs to paint a wall

So, Gautam paints 1/5th of a wall in 1 hour.

Similarly, Gambhir paints 1/6th of the wall in 1 hour

Together,

$\frac{1}{5} + \frac{1}{6}$ = $\frac{6 + 5}{30}$ = $\frac{11}{30}$

11/30th of the wall is painted in 1 hour.

To paint the entire wall, 30/11 hours is required

∴ Gautam and Gambhir will paint the wall in 30/11 hours or 2.73 hours

Answer 2

Answer:

let the total work be 30 units.

Gautam's 1 hour work = 30/5 = 6 units

Gambhir's 1 hour work = 30/6 = 5 units

work done by both in 1 hour = 6+5= 11unit

work done = speed × time

30= 11× t

t=30/11=2 8/11 hour

t = 2 hours 43 minutes 33 seconds

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