Math, asked by swapnila71, 9 days ago

1 ) in 9th No of Boys is 5 more Than No of girls
3 times of no of girls is 12 more than double the number of boys find the number of boys and girls? Please Give Me Step By Step Explanation ​

Answers

Answered by playac16532
0

Answer:

Step-by-step explanation:

x=number of boys

y=number of girls

Question statements:

x-y=5 ...(i)

3y-2x=12 ... (ii)

My Statements:

y=x-5 ... (iii)

2x = 3y-12 ...(iv)

x>y ...(v)

If i substitute y in (ii) with x-5 (from (iii)) we will get:

3(x-5)-2x = 12

= 3x - 15 -2x = 12

= x -15 = 12

= x = 27

y=x-5 = 27-5 = 22

y=22, x=27

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