Question

in a school of 6422students ratio of girls to boys 5:8t ,1/5th of the girls and 1/8 th of the boys took part in a school camp fraction of the totalstrength took part in the camp is

Answer 1

let girls=5x,boys=8x
1/5×5x=x
1/8×8x=x
x+x=2x
2x=6422
x=6422/2
x=3211 is answer

Answer 2

See the attachment please