1. One year ago the ratio between Paul's and Peter's salary was 3:4. The ratios of their individual salaries between last year's and this year's salaries are 4:5 and 2:3 respectively. At present the total of their salary is $.4290. The salary of Paul's now is :
A. $1040
B. $1650
C. $2560
D. 3120
E. $4560
2. The ratio between Suz's and John's age at present is 2:3. Suz is 6 years younger than John. The ratio of Suz's age to john's age after 6 years will be :
A. 1 : 2
B. 2 : 3
C. 3 : 4
D. 3 : 8
E. 8 : 9
3. The ratio between the ages of Kamala and Savitri is 6:5 and the sum of their ages is 44 years. The ratio of their ages after 8 years will be :
A. 5 : 6
B. 7 : 8
C. 8 : 7
D. 14:13
E. 12:13
4. In a mixture of 60 litres, the ratio of milk and water is 2:1. What amount of water must be added to make the ratio 1:2?
A. 42 l
B. 56 l
C. 60 l
D. 77 l
E. 80 l
5. A's money is to B's money as 4:5 and B's money is to C's money as 2:3. If A has $800, C has
A. $1000
B. $1200
C. $1500
D. $2000
E. $2400
6. 15 litres of a mixture contains 20% alcohol and the rest water. If 3 litres of water is mixed in it, the percentage of alcohol in the new mixture will be :
A. 17
B. 16 2/3
C. 18 1/2
D. 15
E. 18
7. George got thrice as many marks in Maths as in English. The proportion of his marks in Maths and History is 4:3. If his total marks in Maths, English and History are 250, what are his marks in English?
A. 120
B. 90
C. 40
D. 80
E. 50
8. One-fourth of the boys and three-eighth of the girls in a school participated in the sports. What fractional part of the total student population of the school participated in the annual sports?
A. 4/12
b. 5/8
C. 8/12
D. Data inadequate
E. None
9. Gold is 19 times as heavy as water and copper 9 times as heavy as water. The ratio in which these two metals be mixed so that the mixture is 15 times as heavy as water is:
A. 1 : 2
B. 2 : 3
C. 3 : 2
D. 19: 135
E. 135:19
10. $1050 is divided among P, Q and R. The share of P is 2/5 of the combined share of Q and R. Thus, P gets:
A. $200
B. $300
C. $320
D. $420
E. $480
11. Divided $600 among A, B and C so that $40 more than 2/5 Th of A's share. $20 more than 2/7 of B's share and $10 more than 9/17 Th of C's share may all be equal. What is A's share?
A. $280
B. $150
C. $170
D. $200
E. $240
12. 729 ml.of a mixture contains milk and water in the ratio of 7:2. How much more water is to be added to get a new mixture containing milk and water in the ratio of 7:3?
A. 60 ml
B. 70 ml
C. 81 ml
D. 90 ml
E. 99 ml
13. A and B are two alloys of gold and copper prepared by mixing metals in proportions 7:2 and 7:11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the proportion of gold and copper in C will be :
A. 5 : 9
B. 5 : 7
C. 7 : 5
D. 9 : 5
E. 7 : 9
14. The students in three classes are in the ratio 2:3:5. If 20 students are increased in each class, the ratio changes to 4:5:7. The total number of students before the increase were:
A. 10
B. 90
C. 100
D. None of these
E. cannot be determined
15. $5625 is divided among A, B and C so that A may receive 1/2 as much as B and C together receive, B receives 1/4 of what A and C together receive.
The share of A is more than that of B by :
A. $750
B. $775
C. $1500
D. $1600
E. $1800
16 A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is :
A. 3:5
B. 2:5
C. 3:1
D. 1:3
E. 2:3
17. A circle and square have same area. Therefore, the ratio of the side of the square and the radius of the circle is :
A. √π : 1
B. 1 : √π
C. 1 : π
D. π : 1
E. 1 : 1
18. In a class, the number of boys is more than the number of girls by 12% of the total strength. The ratio of boys to girls is :
A. 11:4
B. 14:11
C. 25:28
D. 28:25
E. 11:25
19. A, B and C do a work in 20, 25 and 30 days respectively. They undertook to finish the work together for $2220, then the share of A exceeds that of B by :
A. $120
B. $180
C. $300
D. $600
E. $750
20. Three friends divide Rs.624 among themselves in the ratio 1/2 : 1/3 : 1/4. The share of the third friend is :
A. $288
B. $192
C. $148
D. $144
E. $120