Q254
In a school the ratio of boys and girls is 4 : 5 respectively. When 100 girls leave the school the ratio becomes 6 : 7 respectively. How many boys are there in the school ?
A.
1300
B.
1500
C.
1600
D.
Cannot be determined
E.
None of these
AnswerAnswer: Option E
Solution
Answer: Option E
Solution:
Let the number of boys and girls be 4x and 5x respectively.Then,