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enot [183]
3 years ago
10

36 boys complete a school task in 4 hours. How many boys would be required to complete the same task in 2¼ hours?​

Mathematics
1 answer:
vova2212 [387]3 years ago
8 0

Answer:

20

Step-by-step explanation:

If 36 boys can conplete a task in 4 hours, then 19.35 boys could do it in 2 and a fourth hours.

You can set up an equation

A fourth of an hour is 15 minutes, so,

36 is to 4 as x is to 2.15, or,

36=4 as X=2.15

Multiply 2.15 by 36 (77.4)

77.4 divided by 4= 19.35.

Of course, you cannot have 19.35 boys, so there must be 20.

Hope this helps!

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