Quant Test for SBI PO Prelims 2020 Exam set – 5

  1. In how many ways a group of 4 boys and 3 girls be made out of a total of 8 boys and 5 girls ?
    140
    180
    720
    560
    None of these
    Option A
    =8C4 * 5C3

     

  2. There are 8 boys and and 7 girls.In how many ways a group of 5 people can be made such that the particular girls is always to be included?
    1005
    985
    1200
    1001
    None of these
    Option D
    Ways are 14C4

     

  3. There are 6 boys and 7 girls.In how many ways a committee of 4 mmebers can be made such that a particular boy is always to be excluded?
    502
    550
    605
    495
    None of these
    Option D
    Ways are 12C4.

     

  4. In a group of 8 men,2 boys aged at 21 and 23 were replaced two new men.Due to this the average cost of the group increased by 2 years.What is the average age of the 2 new mens?
    28
    30
    20
    32
    None of these
    Option B
    Total age of mens=8*2=16 years
    Sum=21+23+16=60
    Average=60/2=30 years

     

  5. Three years ago,the average age of P,Q and R was 27 years.Also 5 years ago,the average age of Q and R was 20 years.What is the present age of P?
    50 years
    55 years
    52 years
    40 years
    42 years
    Option D
    Sum three years ago=27*3=81
    At present age=81+3*3=90
    Present age of Q and R=20*2+5*2=50
    So90-50=40

     

  6. If mani spends Rs 1000 for the first 5 months,Rs 2000 for the next 4 months and Rs 3000 for the next 3 months and he saves Rs 2000 in the whole year then his average monthly will be hwat?
    Rs 1000
    Rs 2000
    Rs 3000
    Rs 4500
    None of these
    Option B
    =1000* 5 + 2000* 4 + 3000*3 + 2000
    =24000
    =24000/12=2000

     

  7. Study the following and answer the questions:

    68 , 117 , 61 , 124 , 54 , ?

    128
    131
    145
    140
    None of these
    Option B
    68-7=61
    61-7=54
    124+7=131

     

  8. 3.25 , 6.5 , 19.5 , 78 , 390 , ?
    2550
    2500
    2340
    2450
    None of these
    Option C
    3.25*2=6.5
    6.5*3=19.5
    19.5*4=78

     

  9. 8 , 4 , 4 , 8 , 32 , ?
    480
    450
    256
    512
    None of these
    Option C

     

  10. 6 , 8 , 8 , 22 , ? , 151
    45
    47
    55
    52
    None of these
    Option B
    6*1+2=8
    8*1.5-4=8
    8*2+6=22
    22*2.5-8=47

     


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