Question

The ratio of the number of boys to the
number of girls in a school activity is
3:4 There are 18 more
girls than
boys. If 6 boys quit, what will be
the new ratio of the numbers of boys to the number of girls ? ans- a) 2:3 b)4:7 c)3:4 d)5:3
please explain your answer​

Answer 1

Answer:

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Step-by-step explanation:

Ratio of boys and girls =4:3

Girls

Boys

=

5

4

18

Boys

=

5

4

Boys =

3

4×18

=24

Therefore, total number of students =24+18=42.

Answer 2

Answer:

step 1 : ratio= no. of bus to girls = 3 : 4

step 2 : There are 18 more girls, hence in 3 : 4 | 1 unit stands for 18

step 3 : no. of boys = 18×3 and 6 quits so, 18×3 = 54 - 6 = 48

step 4 : no. of girls= 18×4 = 72

step 5 : And = 54/72 = 2:3