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Ratio and proportion RRB (Railways) MCQ Questions With Answers
1.
The ratio of the numbers of male and female workers in a farm having 320 workers is 9 : 11. What will be the new ratio if 8 female workers leave the work?
91 : 81
17 : 20
6 : 7
7 : 9
2.
Rs. 3900 is divided into three parts A, B, C. How much A is more than C if their Ratio is \(\frac{1}{2}:\frac{1}{3}:\frac{1}{4}\)
Rs. 300
Rs. 600
Rs. 900
Rs. 1, 800
3.
A virus inside a human organ can triple itself at every second. Then the ratio of the number of viruses at 31 seconds and 33 seconds is
9 : 1
1 : 3
1 : 9
14 : 15
4.
If x : y = 5 : 1, then (4x2 – 22xy + 10y2) is equal to
4/5
3/8
0
10
5.
If Gaganjyot's salary is 7/6 times of Hafiz's and Sayed's is 8/7 times of Hafiz's, what is the ratio of Gaganjyot's salary to Sayed's.
49 : 48
3 : 4
4 : 3
48 : 49
6.
Two vessels of equal volume contain milk and water in the ratio 1 : 3 and 2 : 1. If they are mixed together, what is the new ratio?
11 : 13
13 : 11
9 : 11
11 : 9
7.
Two numbers are in the ratio 5 : 6. When 6 is added to each, the ratio becomes 7 : 8 then the numbers are
10 & 12
20 & 24
15 & 18
5 & 6
8.
Fresh fruit contains 75% water and dry fruit contains 20% water. How much dry fruit can be obtained from 300 kg of fresh fruits?
15 kg
93.75 kg
75 kg
60 kg
9.
A man divides his property so that his son’s share to his wife’s and wife’s share to his daughter’s are both as in the ratio 3: 1. If the daughter gets Rs. 10,000 less than son, the value (in rupees) of the whole property is
Rs. 16,250
Rs. 16,000
Rs. 18,250
Rs. 17,000
10.
The population of a town is 10,000. If the males increases by 5% and the females by 6%, the population will be 10540. How much females are there?
3500
4000
4500
2500
11.
Tiger is chasing a Zebra. The distance covered by Tiger in 9 leaps is equal to the distance covered by Zebra in 7 leaps. If in the same interval of time Tiger leaps 6 times while Zebra leaps 4 times. The ratio of speed of Tiger and Zebra is
7 : 6
28 : 15
14 : 27
3 : 4
12.
Some money is divided among A, B and c in such a way that 7 times A’s share, 9 times B’s share and 11 times C’s share are all equal. The ratio between the shares of A, B, C is
7 : 9 : 11
11 : 9 : 7
63 : 77 : 99
99 : 77 : 63
13.
If \(\frac{2}{3}\ {\rm{of\ A}} = 30{\rm{\%\ of\ B}} = 0.5\ {\rm{of\ C}}.\) Then A : B : C is ?
9 : 20 : 12
9 : 20 : 14
2 : 10 : 5
12 : 25 : 15
14.
In an alloy, the ratio of tin and lead is 4 : 3. If 2.250 kg of lead is mixed in 16 kg 100 gm of alloy, then the ratio of tin and lead will be
184 : 183
180 : 181
148 : 142
143 : 138
15.
A bag has Rs12.9 in the form of 1 rupee, 50 paise and 10 paise coins in the ratio of 3 : 2 : 3. How many 50 paise coins are there in the bag?
9
6
12
3
16.
If 35% of A's income is equal to 25% of B's income, then the ratio of A's income to B's income is
7 : 5
5 : 7
4 : 7
4 : 3
17.
The railway fares of air conditioned sleeper and ordinary sleeper class are in the ratio 4 : 1. The number of passengers travelled by air conditioned sleeper and ordinary sleeper classes were in the ratio 3 : 25. If the total collection was Rs. 37,000, how much did air conditioner sleeper passengers pay?
Rs. 15,000
Rs. 10,000
Rs. 12,000
Rs. 16,000
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