class B has 40% more students than class A. number of girls in class A is equal to number of boys in class B. the percentage of girls same in both classes. find the ratio of number of boys in class A to the number of girls in class B
Answers
Answer:
let no. of boys and girls in class A be x1, y1
let no. of boys and girls in class A be x2, y2
class B has 40% more students than class A
(x2+y2) = (7/5)(x1+y1) ------(1)
no. of girls in class A is equal to no. of boys in class B
y1 = x2--------(2)
percentage of girls in both classes is same.
y1/(x1+y1) = y2/(x2+y2)
substitute (1) ,
y1=(5/7) y2--------(3)
using this three find x1/y2...
Hope this helps you...
Answer:
Step-by-step explanation:
let no. of boys and girls in class A be x1, y1
let no. of boys and girls in class A be x2, y2
class B has 40% more students than class A
(x2+y2) = (7/5)(x1+y1) ------(1)
no. of girls in class A is equal to no. of boys in class B
y1 = x2--------(2)
percentage of girls in both classes is same.
y1/(x1+y1) = y2/(x2+y2)
substitute (1) ,
y1=(5/7) y2--------(3)
using this three find x1/y2...