Practice test

Ratio and proportion - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    What is the duplicate ratio of 15 : 12
    1. 150 : 120
    2. 212 : 144
    3. 225 : 144
    4. 45 : 36
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  2. Question 2

    What is the sub-duplicate ratio of 225 : 144?
    1. 15 : 12
    2. 5 : 12
    3. 12 : 5
    4. 12 : 15
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  3. Question 3

    The compound ratio of 1 : 2, 3 : 10 and 10 : 21 is:
    1. 1 : 7
    2. 7 : 1
    3. 14 : 1
    4. 1 : 14
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  4. Question 4

    What is the compound ratio of 45 : 75, 3 : 5, 51 : 68 and 256 : 81?
    1. 6475
    2. 12875
    3. 7532
    4. 3245
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  5. Question 5

    The ratio 1 : 5 can be expressed in decimal as:
    1. 0.5
    2. 0.2
    3. 0.02
    4. 0.1
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  6. Question 6

    Express the ratio of 6 hours : 3 days in its simplest form.
    1. 13
    2. 16
    3. 112
    4. 19
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  7. Question 7

    If x : y = 3 : 4, then (7x - 4y) : (3x + 2y) = ?
    1. 1:4
    2. 1:3
    3. 2:7
    4. 5:17
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  8. Question 8

    If a : b = 7 : 3 , then the value of (3a + 2b) : (3a - 2b) is equal to which of the following?
    1. 2+21(-2-21)
    2. 2+21(-2+21)
    3. 2-21(2+21)
    4. 2+21(2-21)
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  9. Question 9

    Out of ratio 15 : 23, 17 : 25, 7 : 15, 21 : 29, the smallest one is:
    1. 21 : 29
    2. 17 : 25
    3. 15 : 23
    4. 7 : 15
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  10. Question 10

    Find the largest ratio among the following.
    1. 15 : 28
    2. 13 : 21
    3. 19 : 27
    4. 5 : 18
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  11. Question 11

    If 15% of A: 25% of B:: 8 : 11, then A : B is equal to:
    1. 4 : 3
    2. 33 : 32
    3. 5 : 4
    4. 40 : 33
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  12. Question 12

    Which fraction bears the same ratio to 127 as 311 does to 59 ?
    1. 115
    2. 199
    3. 127
    4. 155
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  13. Question 13

    If (3a2 - 8b2) : (a2 + 4b2) = 2 : 1, then a : b =?
    1. 5 : 4
    2. 1 : 4
    3. 4: 5
    4. 4 : 1
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  14. Question 14

    The average price of three items of furniture is Rs. 15000. If the ratio of their price is 3:5:7, find the price of the cheapest article.
    1. Rs.15000
    2. Rs.9000
    3. Rs.21000
    4. Rs.18000
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  15. Question 15

    A, B and C share the cash prize among themselves in the ratio 3:5:7. If C gets Rs.49000, then find the total amount received by A and B together.
    1. Rs.65,000
    2. Rs.44,000
    3. Rs.80,000
    4. Rs.56,000
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  16. Question 16

    If A : B = 1.2 : 2, B : C = 1.5 : 2, and C : D = 2 : 3, then B : D equal to :
    1. 5 : 6
    2. 1 : 2
    3. 3 : 4
    4. 2 : 3
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  17. Question 17

    If a is 7.5% of b, b is 1.50% of C and d is 5% of C, then find a : d.
    1. 9 : 400
    2. 8 : 300
    3. 9 : 100
    4. 8 : 100
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  18. Question 18

    A certain amount was divided into 2 parts in the ratio 6 : 5. If the first part is of Rs.126, what will be the total amount (in rupees)?
    1. 251
    2. 241
    3. 261
    4. 231
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  19. Question 19

    250 grams of sweet has 20 grams of cashew and 30 grams of almonds. How many grams of cashew and almonds, respectively, will be there in 350 grams of the same sweet?
    1. 40 and 60
    2. 25 and 45
    3. 21 and 28
    4. 28 and 42
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  20. Question 20

    If the ratio of the angles of a triangle is 1 : 4 : 7 then find the ratio of the largest angle to the smallest angle.
    1. 7 : 2
    2. 2 : 3
    3. 7 : 1
    4. 3 : 5
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