Question

At 5 p.m., Henry and Gordon have made 60 and 20 cranes respectively. Henry can make 30 cranes per

hour while Gordon can make 40 cranes per hour. When will they get the same number of cranes?​

Answer 1

At 9p.m.(after 4hours)

Explanation:

1h. 1h. 1h. 1h

henry:60. 90. 120. 150. 180

gordon:20. 60. 100. 140. 180

you can find it by using this way.i think it will be help for you.

Answer 2

9 p.m.

Explanation:

Given:

• Start time = 5 p.m.
• Henry made = 60 cranes
• Gordon made = 20 cranes
• Henry's speed = 30 cranes/h
• Gordon's speed = 40 cranes/h

To find:

• The time Henry and Gordon make same number of cranes

Solution

Let the required time = x

For Henry:

• 60 + 30x

For Gordon:

• 20 + 40x

Since they require the same time and same number, we have:

• 60 + 30x = 20 + 40x
• 40x - 30x = 60 - 20
• 10x= 40
• x= 40/10
• x= 4 hours

The start time was 5 p.m., we need to add 4 hours to this to get 9 p.m.

Answer: At 9 p.m. they will get the same number of cranes