Question

The ratio of number of boys to the number of girls in a school of 1,200 students is 7:5. If 20 boys are newly admitted to the school, find how many girls may be admitted so that above ratio may change to 4:3. (CAPGEMINI) a) 80 b) 140 c) 40 d) 60

Answer 1

Answer:

40 girls should have admitted

Answer 2

Answer:

Option C)40 girls should be admitted

Step-by-step explanation:

we have been given that,

Total number of students in a school=1200

Ratio of number of boys to number of girls is 7:5

Total number of boys in the school is 700

Total number of girls in the school is 500

20 new boys were admitted to the school.Therefore total number of students in the school is 1220

we have to find number of girls to be admitted so that ratio changes to 4:3

Now total number of boys=720

Total number of girls to be admitted to get the ratio 4:3 is 40

hence total numbr of girls admitted = 40

Ratio of boys:Ratio of Girls=720:540=4:3

Total number of new girls to be admitted = 40