Question

For the following frequency distribution, draw a histogram. Class - 0-5,5-10,10-15,15-20,20-25,25-30
frequency - 2,7,18,10,8,5.​

Answer 1

Step-by-step explanation:

Let the total work be W.

Let the speed of A be x work/day.

Let the speed of B be y work/day.

Two workers A and B working together completed a job in 5 days.

∴

x+y

W

hope it helps a lot..

If A worked twice as efficiently as he actually did and B worked

3

1

as efficiently as he actually did the work would have been completed in 3 day.

∴

2x+

3

1

y

W

=3

Answer 2

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