Quant Test for SBI PO Prelims 2020 Exam set – 18

  1. There are ‘x’ number of black and 15 white marbles in a bag.The probablity of taking out one black marble is 4/7.What is the total number of marbles in bag?
    35
    20
    25
    42
    None of these
    Option A
    Probablity of taking out one black marble=x/(x+15)=4/7
    7x=4x+60
    x=20
    Total =20+15=35 marbles

     

  2. The length of train X is 240 m and its speed is 25m/s.It croesses atrain Y of length 210 m in 7.5 seconds.What is the speed of train Y?
    124 km/hr
    126 km/hr
    120 km/hr
    116 km.hr
    None of these
    Option B
    Let speed of train Y be p.
    (240+210)/(25+p)=7.5
    p=35 m/sec = 35*18/5

     

  3. P and Q start at the same time with speed of 60 km/hr and 80km/hr respetively.In covering the journey P takes 20 minutes more than Q.What is the total distance of journey?
    80 km
    90 km
    95 km
    100 km
    105 km
    Option A
    Ratio of speeds=3:4
    Ratio of time taken by them=4:3
    Time taken by Q to complete the journey=20/1 *3 =60 min = 1 hour
    Distance=80 km

     

  4. The selling price of an item after a discount of 8% is Rs 805.If the CP of the item is Rs 700,then MP of the item is what percent more than CP of item?
    30%
    35%
    25%
    45%
    None of these
    Option C
    MP=805/92 * 100 = Rs 875
    Required=(875-700)/700 * 100 = 25%

     

  5. The average of present ages of Akansha and Caryl is 32 years and Caryl is 14 years older than Banya.The ratio of present age of Akansha to present age of Banya is 14:11.What is the prsent age of Banya?
    22 years
    25 years
    27 years
    28 years
    Nnoe of these
    Option A

     

  6. Study the following and answer the questions:

    12 , 42 , 156 , 606 , 2400 , ?

    9570
    9680
    9690
    8505
    Noneo f these
    Option A
    (12*4)-6=42
    (42*4)-12=156
    (156*4)-18=606

     

  7. 18 , 9 11 , ? , 109 , 544
    26
    24
    28
    30
    None of these
    Option C
    18*1-9=9
    9*2-7=11

     

  8. 6 , 8 , 16 , 42 , 122 , ?
    360
    355
    364
    370
    None of these
    Option C

     

  9. 13 , 21 , 37 , 61 , ? , 133
    88
    93
    90
    86
    None of these
    Option B

     

  10. 14 , 8 , 7 , 11.5 , 22 , ?
    54
    52
    56
    60
    65
    Option C

     


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