Question

the ratio of number of boys to the number of girls in a school of 1440 students is 7 : 5. if 40 new boys are admitted, find how many new girls may be admitted to make this ratio 4 : 3.​

Answer 1

Answer:60 girls

Step-by-step explanation:

7x:5x=1440

12x=1440

x=120

so boys ; girls=840;600

40 new bys added

840+40/600+X=4/3

solving this we get X=60