Mixed Quantitative Aptitude Questions Set 141

Directions(1-5): Find the missing term ‘?’ of the following series.

  1. 525,524,516,489,?,300
    320
    425
    325
    400
    300
    Option B
    -1^3,-2^3,-3^3,-4^3,-5^3
    ? = 425

     

  2. 24,36,72,180,?,1890
    500
    525
    515
    540
    536
    Option D
    *1.5,*2,*2.5,*3,*3.5
    ? = 540

     

  3. 32,37,27,42,?,47
    18
    15
    20
    10
    22
    Option E
    +5,-10,+15,-20,+25
    ?= 22

     

  4. 12,10,17,47,?,909
    172
    180
    198
    177
    183
    Option E
    *1-2
    *2-3
    *3-4
    *4-5
    *5-6
    ? = 183

     

  5. 24,43,81,138,?,309
    200
    214
    232
    222
    220
    Option B
    +19*1
    +19*2
    +19*3
    +19*4
    +19*5
    ? = 214

     

  6. A boy covers 5 km north from his home, and then turns right to cover some distance at the speed of 4.8km/hr. in 2.5hours to reach his school. Find the shortest distance between his home and school.
    15
    20
    16
    13
    10
    Option D
    Distance = 4.8*2.5 = 12 km
    Shortest distance= (12^2 + 5^2)^1/2 = 13 km

     

  7. Find the rate at which Rs.11500 yields Rs.5060 compound interest after 2 years when compounded annually.
    22
    18
    25
    20
    26
    Option D
    Let the rate be r% p.a.
    5060 = 11500*{(1+r/100)^2 -1}
    => 16560/11500 = (1+r/100)^2
    =>r = 20%

     

  8. The profit percent on an article ‘X’ worth Rs.1500 is same as the loss percent on an article ‘Y’ worth Rs.2100. If the selling price of the article ‘Y’ is Rs.1680. Find the selling price of the article ‘X’.
    1000
    1200
    1800
    1400
    1600
    Option C
    Loss percent on article Y = (2100- 1680)/2100
    = 20%
    Profit on X = 20%
    SP of article X = 1.2*1500 = Rs.1800

     

  9. A and B monthly incomes were Rs. 42000 and Rs.30000 resp. If A’s expenditure was 2/3rd of his income and B’s expenditure was 3/4th of his income. Find the sum of the monthly savings of A and B?
    23000
    25025
    24470
    21500
    22600
    Option D
    A’s savings = 1/3*42000 = Rs.14000
    B’s savings = ¾*30000 = Rs.7500
    Sum = Rs.21500

     

  10. The average height of all the males and all the females of a family is 172 cm and 180 cm resp. If the family has only married couples with no unmarried member. Find the average height of the family.
    190
    145
    160
    176
    157
    Option D
    Let the number of male members be x.
    Required average = (172x+180x)/2x = 176 cm

     


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