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Answered

The ratio of the boys to the girls is 1:3. There are 20 pupils.
There are ___ boys and ___ girls?

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Sagot :

Mysteryflowergo

Answer:

5:15

Step-by-step explanation:

multiply it by 5 then add it to check if it got the correct number of pupils:)

Crystallee03go

Answer:

Solutions

Solution: Using a tape diagram

For every 4 boys there are 5 girls and 9 students at the school. So that means that 49 of the students are boys. 49 of the total number of students is 120 students:

49×?=120

If 49 the number of students is 120, then 14 of 120 is 19 of the total number of students. In other words, 14×120=30 is 19 the total number of students. Then 9 times this amount will give the total number of students:

9×30=270

So there is a total of 270 students at the school. Note that this is equivalent to finding the answer to the division problem:

120÷49=?

There are 4 units of boys and 9 units of students. Therefore 4/9 of the students are boys.

4 units = 120

1 unit = 30

9 units = 270

There are 270 students altogether.

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