Chemistry, asked by dhainendra1478, 1 year ago

Ek club me ladke or ladkiyo ka ratio 7:4 hai.yadi ladko ki tulna me 21 ladkiya kam hai to kul bache kitne hai

Answers

Answered by Suraj39959
0

Answer:

77

Explanation:

7x-4x =21

3x =21

x =21/3

x = 7

total boys 7x= 7*7=49

total girls. 4x= 4*7=28

total number of children in club = 49+28=77

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