Ratio

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In an examination, the number of those who passed and the number of those who failed were in the ratio 25:4. If five more had appeared and the number of failures was 2 less than earlier, the ratio of passers to failures would have been 22:3. The number of students who appeared at the examination, is….
145
yes
150
no
155
no
180
no
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The ratio of the income to the expenditure of a family is 10:7. If the family’s expenses are Rs 10,500, then savings of the family is….
Rs 4,500
yes
Rs 10,000
no
Rs 4,000
no
Rs 5,000
no
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The number of students in three classes are in the ratio 2 : 3 : 5. If the number of students in each class is increased by 20 the ratio becomes 4 : 5 : 7. The total number of students before the increase was….
80
no
90
no
100
yes
120
no
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The sum of three numbers is 68. If the ratio of the first to the second be 2 : 3 and that of the second to the third 5 : 3, then the second number is….
30
yes
58
no
20
no
48
no
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The income of A and B are in the ratio 5 : 3. The expenses of A, B and C are in the ratio 8 : 5 : 2. If C spends Rs 2000 and B saves Rs 700, then A saves….
Rs 1500
yes
Rs 1000
no
Rs 500
no
Rs 250
no
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What number should be subtracted from both the terms of the ratio 11 : 15 so as to make it as 2 : 3?
2
no
3
yes
4
no
5
no
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Rs 700 is divided among A, B, C in such a way that the ratio of the amounts of A and B is 2 : 3 and that of B and C is 4 : 5. Find the amounts in Rs each received, in the order A, B, C.
150, 250, 300
no
160, 240, 300
yes
150, 250, 290
no
150, 240, 310
no
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A sum of Rs 76 is divided among A, B, C in such a way that A gets Rs 7 more than that what B gets and B gets Rs 6 more than what C gets. The ratio of their shares is….
19 : 25 : 33
no
19 : 24 : 33
no
32 : 25 : 19
yes
32 : 24 : 20
no
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A model of a ship is made to a scale of 1:200. If the length of the model is 4 cm, the length of the ship is….
200 cm
no
800 cm
yes
80 cm
no
20 cm
no
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If 15 % of x is same as 20% of y then x : y is….
3 : 4
no
4 : 3
yes
5 : 4
no
6 : 5
no
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