School - boys:girls

In a school 10% of boy is equal to the 1/4 of number of girls and 10% of the number of girls is equal to the 1/25 of boys. Find the ratio between the number of boys and girls.

Correct answer:

r =  5:2

Step-by-step explanation:

r1=10%=10010=101=0.1  r1 b=g/4 r1 g=b/25  r = b:g  0.4b=g  b:g = 1/0.4  r=1/0.4=2.5=5:2



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