Question

a man invited some boys and girls on the birthday of his son.The number of boys was 2 less than the number of girl.He gave rs.10 to each boy and rs. 20 to each girl.If the total amount distributed by him was rs.280 the number of boys was​

Answer 1

Answer:

answer is girl will be 10 and boys will be 8

Step-by-step explanation:

take girl x

then boy will be x-2

total amount to girl

20x and boy is

10(x-2)

20x + 10x-20 =280

on solving

x=10

Answer 2

Answer:

Step-by-step explanation:

let no. of boys be x-2 and girls x

(x-2)10 + x(20)= 280

10x-20 +20x =280

30x -20=280

30x= 300x

x=10

x-2 = 10-2 = 8