Question

Atask is completed by 30 persons in 15 days if they work 6 hours per day. How many hours of work will be needed every day if 20 persons have to complete it in 15 days?​

Answer 1

Answer:

we know,

 A task is completed by 30 persons in 15 days if they work 6 hours per day.

work=30 x 15 x 6   ----(1)

How many hours of work will be needed every day if 20 persons have to complete it in 15 days.​

let x be hours

work=x×20×15   ----(2)

Eq (1)=(2)

30×15×6=x×20×15

x=9 hrs

Answer 2

Answer:

x = 9

Step-by-step explanation:

Because, person × Days × Hours

= 30× 15×6 = 20 × X × 15

= 2700 ÷ 300

= 9

= X=9

Every day if 20 parson have to complete it in 15 days in 9 hours.