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Ratio and Proportion
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Find the mean proportional of the following pairs of numbers 50 and 512
80
120
160
200
NONE OF THESE
Ratio of the ages of Mahesh and Nilesh is 5 : x. Mahesh is 18 years younger toRamesh.
After nine years Ramesh will be 47 yearsold.
If the difference between the ages of Mahesh and Nilesh is same as the age of Ramesh, what is the value of x
1
4
3
2
NONE OF THESE
The ratio of the ages of Anil and his son at present is 7 : 3. Six years hence, the ratio of the ages of the Anil's wife and the son will be 2 : 1. Find the ratio of the present ages of Anil and his wife
6 : 5
4 : 3
5 : 4
NONE OF THESE
Cannot be determined
Find the mean proportional of the following pairs of numbers 6 and 24
18
NONE OF THESE
8
16
12
64 boys and 40 girls form a group for socialwork.
During their membership drive, same number of boys and girls joined thegroup.
How many members does the group have now, if the ratio of boys to girls is 4 : 3
172
150
136
164
NONE OF THESE
If 12 men can reap 120 acres of land in 36 days, how many acres of land can 54 men reap in 54 days
810 acres
720 acres
650 acres
890 acres
In an exam, a candidate secured 504 marks out of the maximum mark of M. If the maximum mark M is converted into 800 marks, he would have secured 384marks.
What is the value of M
NONE OF THESE
1200
750
975
1125
Two men Amar and Bhavan have the ratio of their monthly incomes as 6:5. The ratio of their monthly expenditures is 3:2. If Bhavan saves one-fourth of his income, find the ratio of their monthly savings
1:2
NONE OF THESE
3:10
3:5
3:8
In a colony of 70 residents, the ratio of the number of men and women is 4:3. Among the women, the ratio of the educated to the uneducated is 1:4. If the ratio of the number of education to uneducated persons is 8:27, then find the ratio of the number of educated and uneducated men in the colony
3:4
1:4
1:2
2:3
NONE OF THESE
If a:b = 4:1, then find
(a - 3b)/
(2a -
b)
NONE OF THESE
5/7
2/7
1/7
3/7
A gets 3 times as much money as B gets, B gets only Rs.25 more then what Cgets.
The three gets Rs.675 inall.
Find the share of B
Rs.140
Rs.125
Rs.110
Rs.115
A garrison of 2000 men has provisions for 54days.
At the end of 15 days, a reinforcement arrives, and it is now found that the provisions will last only for 20 daysmore.
What is the reinforcement
900 men
2300 men
3900 men
1900 men
The average monthly salary of laborers and supervisors in a factory is Rs.1250 per month; where as the average monthly salary of 6 supervisors is Rs.2450.
If the average monthly salary of the laborers is Rs.950 find the number of laborers
18
24
22
20
Rs.1170 is divided so that 4 times the first share, thrice the 2nd share and twice the third share amount to thesame.
What is the value of the third share
Rs.360
Rs.260
Rs.270
Rs.540
If A:B = 1/2: 1/3 B:C = 1/2:1/3 then A:B:C
9:6:4
1:2:6
2:3:3
1/6:1/2:1/3
A, B and C play a cricketmatch.
The ratio of the runs scored by them in the match is A:B = 2:3 and B:C = 2:5. If the total runs scored by all of them are 75, the runs scored by B are
18
15
24
21
The first three terms of a proportion are 3, 9 and 12. The fourth term is
18
4
36
6
The proportion of copper and zinc in the brass is 13:7. How much zinc will there be in 100 kg of brass
14 kg
20 kg
35 kg
55 kg
The smallest ratio out of 1:1, 2:1, 1:3 and 3:1 is
1:3
1:2
2:1
3:1
The fourth proportional to 5, 8, 15 is
24
19
18
20
1
2
3
6
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