Mixed Quantitative Aptitude Questions Set 138

  1. A costs four times as mush as B . A is sold at a loss of 35% and B is sold at a profit of 60%. If theselling price of A is Rs.1620 more than the selling price of B, what is the cost price of A?
    6150
    6600
    6161
    6480
    6250
    Option D
    SP of A = 0.65*400x = 260x
    SP of B = 1.6*100x = 160x
    Diiference = 260x – 160x = 1620
    => x = 16.2
    CP of A = 400x = 400*16.2 = Rs.6480

     

  2. A solution of ‘Nimboopani’ has 35% sugar. Another solution has 15% sugar. How many litres of the second solution must be added to the 40 L of first solution to make a solution of 25% sugar?
    60
    40
    80
    50
    20
    Option B
    Sugar in first solution = 40*35/100 = 14L
    Sugar in second solution =15*x/100 = 3x/20L
    Total quantity = 40+x L
    Now , [14+3x/20]/(40+x) = ¼
    =>x = 40 L

     

  3. A and B enter into a partnership with their capital in the ratio of 16:9 resp. At the end of 6 months, B withdrew his capital. If they receive the profits in the ratio of 32:27 resp. For how many long is A ‘s capital used?
    5
    6
    3
    2
    4
    Option E
    A withdew capital after x months .
    (16*x)/(9*6) = 32/27
    =>x = 4

     

  4. A man can row 15 km/hr. in still water and he finds that it takes him twice as much time to row upstream as to row downstream . Find the speed of water.
    9
    5
    11
    10
    8
    Option B
    [Dist./(15+x)]*2 = [Dist/(15-x)]
    =>x = 5 km/hr.

     

  5. 10 men and 15 children complete a certain piece of work in 25 days. If each child takes twice the time taken by a man to finish the work. In how many days will 35 children finish the same work.
    15
    18
    20
    25
    22
    Option D
    1 M = 2C
    Total work = (10M + 15C)*25 = 35C + 25
    Time taken to complete the whole work = (35C + 25)/35C = 25 Days

     

  6. Directions(6-10): What approximate value will come in place of question mark ‘?’ in the following questions:

  7. ? =25% of 3632 + 16% of 3750 – 11^3
    150
    152
    181
    165
    177
    Option E
    ? =25% of 3632 + 16% of 3750 – 11^3
    =>? = 908 + 600 – 1331
    => ? = 177

     

  8. 10% of ? = 8^3 – 29^2 + 27^2 – 310 – 16*5
    100
    95
    115
    88
    120
    Option A
    10% of ? = 8^3 – 29^2 + 27^2 – 310 – 16*5
    =>10% of ? =512 – 841 – 310 – 390
    =>10% of ? = 10
    => ? = 100

     

  9. (1369)^1/2 * 10*4 + (2744)^3 *6*15 – (784)^1/2 *5 = ?
    2000
    2121
    2500
    2320
    2100
    Option D
    (1369)^1/2 * 10*4 + (2744)^3 *6*15 – (784)^1/2 *5 = ?
    =>? = 37*40 + 14*90 – 28*15
    =>? = 1480 + 1260 -420
    =>? = 2320

     

  10. 32% of 25% of 4600 = 10% of 40% of ?
    8100
    9000
    9200
    8500
    7500
    Option C
    32% of 25% of 4600 = 10% of 40% of ?
    =>10% of 40% of ? = 368
    =>? = 9200

     

  11. 2304 / 16*(484)^1/2 – 13^3 = ?
    859
    800
    900
    920
    971
    Option E
    2304 / 16*(484)^1/2 – 13^3 = ?
    =>144*22 – 2197 = ?
    =>? = 971

     


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