peird010304 peird010304

15-12-2020
Mathematics

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at a school number of boys:number of girls =11:9
there are 124 more boys than girls
work out the total numbers of students on that school

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paintereva030 paintereva030

15-12-2020

A

1240

Step-by-step explanation:

124 is equal to 2 units in the ratio

124/2 = 62

Therefore, 62 is equal to one unit in the ratio

11+9=20 the total number of students in the school

20 × 62 = 1240

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