RATIO MCQ SET 5
1. The ratio of number of boys and girls in a college is 3 : 2 . If 40 boys leave the college and 40 girls join the college , then their ratio will become 2 : 3 . What is the initial number of boys in the college ?
(a) 120
(b) 150
(c) 225
(d) 75
Answer: A
2. On a tree , there are some parrots and some pigeons in the ratio of 7 : 9 , respectively . After an hour , 8 parrots fly away , and 6 pigeons and 10 sparrows come and sit on the tree . the ratio of the parrots and the pigeons on the tree now is 1 : 4 . What is the ratio of the parrots and the sparrow that are now on the tree ?
(a) 1 : 1
(b) 1 : 2
(c) 3 : 5
(d) 4 : 5
Answer: C
3. Two numbers are in the ratio 3 : 5 . If 13 is substracted from each , the new members are in the ratio 10 : 21 . If 5 is added to each of the original numbers , then the ratio becomes :
(a) 5 : 7
(b) 23 : 33
(c) 4 : 5
(d) 19 : 30ย
Answer: D
4. In a school library , the ratio of Science to English books is 10 : 13 . If there are 400 Science books and due to increase demand of Science books , few Science books are added by school authority and the ratio becomes 25 : 26 . What is the number of Science books added ?
(a) 1.50
(b) 100
(c) 120
(d) 80
Answer: B
5. Monthly salaries of nil and Kumud are in the ratio 19 : 17 . If Anil and Kumud get salary hike of Rs.2000 and Rs. 1000 respectively , then the ratio in their salaries become 8 : 7 . What is the present salary of Kumud after increased (in Rs.) ?
(a) 38000
(b) 18000
(c) 34000
(d) 35000
Answer: D
6. The students in three classes are in the ratio of 3 : 7 : 8 . If 6 students are increased in each class , the ratio changes to 11 : 23 : 26 . Find the total number of students in the three classes before the increase .
(a) 162
(b) 112
(c) 90
(d) 144
Answer: A
7. The students in three batches of a dance class are in the ratio of 2 : 3 : 5 . If 20 students increase in each batch the ratio changes to 4 : 5 : 7 . Find the total number of students in the three batches before the increase .
(a) 120
(b) 100
(c) 150
(d) 80
ย Answer: B
8. Avinash’s monthly salary is Rs.50,000 and his expenditure is Rs.18,000 . Radha’s montly salary is Rs.60,000 and her monthly expenditure is Rs. 24,000 . Find the ratio of Radha’s savings to Avinash’s saving’s .
(a) 9 : 8
(b) 9 : 7
(c) 6 : 5
(d) 8 : 7
Answer: A
9. The expenditure and savings of a person are in ratio of 4 : 3 . His savings increase by 1/5 of his income and income remains the same . What is the new ratio of his expenditure and savings ?
(a) 12 : 17
(b) 14 : 17
(c) 13 : 22
(d) 15 : 13
Answer: C
10. The ratio of the expenditure and savings of a person is 4 : 3 . His expenditure increases by 1/4 of his initial savings and his income increases by Rs. 300 . If his savings remains the same , then what is his initial experience ?
(a) Rs.1600
(b) Rs.20000
(c) Rs.10000
(d) Rs.12000
Answer: A
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