Question

In a class sum of boys and girls is72 but number of girls score 15 more than the number of boys​

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:let no. of girls be x and no. of boys be y

ATQ,

x=y+15-----1

x+y=72-------2

Substitute value of x in equation 2

(y+15)+y=72

2y+15=72

2y=72-15=57

y=57/2

y=28.5