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the ratio of the boys to the girls 1;3.There are 20 pupils

Sagot :

Answer:

There are 5 boys and 15 girls

Step-by-step explanation:

(Trial and Error)

1:3

1+3=4

20÷4=5

(5)1:3(5)

5:15

Check:

5+15=20 ✔️