Mixed Quantitative Aptitude Questions Set 134

Directions(1-5): What will be the value in place of question mark “?” in the following questions.

  1. 0.03 × 0.01 – 0.003 ÷ 100 + 0.03 =?
    0.01731
    0.03027
    0.01235
    0.03027
    0.01626
    Option D
    0.03 × 0.01 – 0.003 ÷ 100 + 0.03 =?
    ? = 0.0003 – 0.00003 + 0.03 = 0.03027

     

  2. 17 × 25 – 240 +? ÷ 41 = 354
    7266
    8890
    6929
    6000
    7254
    Option C
    17 × 25 – 240 +? ÷ 41 = 354
    ? /41 = 354 – 425 + 240
    ⇒ ? = 41 × 169
    ⇒ ? = 6929

     

  3. 3.4 × 2.6 × 5.4 ÷ 1.8 ÷ 0.17 =? ÷ 0.8
    100.5
    112.6
    105.5
    124.8
    120.5
    Option D
    3.4 × 2.6 × 5.4 ÷ 1.8 ÷ 0.17 =? ÷ 0.8
    ?/ 0.8 = 156
    ⇒ ? = 124.8

     

  4. 1701 ÷ 2100 + 3087 ÷ 6300 + 832 ÷ 5200 =?
    1.11
    1.46
    2.03
    1.51
    2.21
    Option B
    1701 ÷ 2100 + 3087 ÷ 6300 + 832 ÷ 5200 =?
    ? = 0.81 + 0.49 + 0.16 = 1.46

     

  5. 39% of 450 + 51% of 340 – 40% of 255 =?
    211.5
    246.9
    200.6
    215.5
    220.6
    Option B
    39% of 450 + 51% of 340 – 40% of 255 =?
    ? = 39/100 × 450 + 51/100 × 340 – 40/100 × 255
    = 246.9

     

  6. Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, then find the price of third variety per kg.
    178.9
    175.5
    166.5
    150.7
    162.8
    Option B
    Let price of third variety was Rs. A per kg
    Let respective amounts of these tea were x kg, x kg and 2x kg.
    126x + 135x + 2Ax = 153 × 4x
    ⇒ 2A = 351
    ⇒ A = 175.5 rupee per kg

     

  7. One fill pipe A is 3 times faster than second fill pipe B and takes 32 minutes less than the fill pipe B. When will the cistern be full if both pipes are opened together?
    10
    12
    15
    18
    14
    Option B

    Let, pipe A takes x minutes to fill the cistern.
    Then, pipe B takes 3x minutes to fill the cistern
    3x – x = 32
    ⇒ x = 16 minutes
    3x = 48 minutes
    So, both pipes can fill the cistern in ( 48×16/48+16) minutes = 12 minutes

     

  8. A vessel contains mixture of milk and water in which water concentration is 30%. If 20% water and 30% milk is taken out and replaced with equal quantity of water, then quantity of water increases by what percent of the initial quantity of water in the mixture.
    50%
    90%
    70%
    80%
    60%
    Option C
    Let vessel contains 100 L .
    So required % = 30/100 × 70/30 × 100 = 21/30 × 100 = 70%

     

  9. The marked price of a radio is Rs 480. The shopkeeper allows a discount of 10% and still gains 8%. If no discount is allowed, find his gain percent.
    25%
    15%
    13%
    20%
    10%
    Option D
    M. P. = Rs 480/-
    Discount = 10%
    S.P. = 90/100 × 480 = Rs 432
    P% = 8%
    C.P. = 100/108 × 432 = 400
    If no discount is given then S.P. = M.P. i.e. S.P. = 480
    P% = S. P. −C. P./C. P. × 100
    = 480 – 400/400 × 100 = 80/400 × 100 = 20%

     

  10. The ratio of income of A, B and C is 3 : 7 : 4 and the ratio of their expenditure is 4 : 3 : 5 respectively. If A saves Rs 300 out of Rs 2400, find the savings of C.
    500
    457
    575
    620
    550
    Option C
    Salary of A = 3x = Rs 2400
    Salary of B = 7x = Rs 5600
    Salary of C = 4x = Rs 3200
    Expenditure of A, B and C = 4y, 3y & 5y respectively.
    Saving of A is 300
    Expenditure = 4y = (2400 – 300) = 2100
    𝑦 = 2100/4 = 525
    Expenditure of B = 3y = 1575
    Savings of B = 4025
    Expenditure of C = 5y = 2625
    Savings of C = 575

     


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