Question

if 17 worker dig 102 holes in 2 hours. then how many holes will 19 workers dig in 3 hours?

Answer 1

Answer:

According to the question, 19 workers can dig 171 holes in 3 hours.  

Step-by-step explanation:

step 1:

17 workers dig 102 holes in 2 hours.

step 2:

1 worker digs  ( 102 ÷ 17 ) = 6 holes in 2 hours.

step 3:

then 1 worker can dig ( 6 ÷ 2 ) = 3 holes in 1 hour.

step 4:

therefore, 19 workers can dig ( 19 × 3 × 3 ) = 171 holes in 3 hours.

so, the correct answer is 171