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SBI PO 2015 : MIX QUANTS QUIZ

By
AC Team 1
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Hello Aspirants. Welcome to Online Quantitative Aptitude section in AffairsCloud.com. Here we are creating question sample From all topics , which is common for all the IBPS,SBI exam and other competitive exams. We have included Some questions that are repeatedly asked in exams !!

  1. The price of oil is increased by 20%,as a result a family decrease consumption by 25%.The expenditure of the family on oil will be
    1).90%increase
    2).10%incraese
    3).90%decrease
    4).10%increase.
    4).10%increase.
    Exp: (120/100)×(75/100)×100=90.
    100-90=10%(should be decrease)

  2. A rectangular grassy plot 110 m by 65 m has a gravel path 2.5 m wide all round it on the inside. Find the cost of gravelling the path at 80 paise per sq. Meter
    1).Rs.680
    2).Rs.860
    3).Rs.608
    4).None.
    1).Rs.680
    Exp: overall area of the grassy plot is 110 x  65 =7150 sq. meters.The area of the grassy plot
    after applying the gravel path is  105 x 60=6300 sq. meters.Area of the gravel path is  7150 –
    6300 = 850 sq.mtrs.Hence x 0.80=Rs.680 .

  3. A game of the football with 11 players lasts for exactly 80minutes.There are 4 substitutes that alternate equally.If each player plays for the same length of the time,What is the duration?
    1)120m
    2)20m
    3)84m
    4)40m
    2)20m
    Exp: 80/4=20m.

  4. 20 workers working 5hours a day can finish the work in 20 days.If the workers went to work for 4hours a day.How many more workers are required to complete the work in same 20days?
    1)7
    2)4
    3)5
    4)6
    3)5
    Exp: workers required for 4h=>(5/4)×20=25.
    25-20=5.

  5. Pencils are bought at 3 for Rs.2 and sold at 2 for Rs.3.Find the gain percentage
    1)100%
    2)110%
    3)125%
    4)115%
    3)125%
    Exp: [3(3)-2(2)]/4=5/4
    In percentage=> (5/4)×100=125%.

  6. In how many ways letter of the world BANKING can be arranged so that vowels always come together?
    1)240
    2)120
    3)720
    4)540
    3)720
    Exp: [(6!)/(2!)]×(2!)=360×2=720 [(6!)/(2!)]-letters formed, 2!-Vowels.

  7. A bag contain 4 white & 5 red and 6blue color balls,3 balls are drawn randomly.What is the probability of all the balls are red?
    1)1/22
    2)3/22
    3)2/90
    4)2/91
    4)2/91
    Exp: 15C3/5C2=(15×14×13)/(3×2×1)=10/455=2/91

  8. A boat cover a certain distance downstream in 2hr while it comeback 3/2hrs.If the speed of the stream be 4kmph.what is the speed of the boat in still water?
    1)21kmph
    2)18kmph
    3)22kmph
    4)12kmph
    1)21kmph
    Exp:(x+3) ×2=(x-3)(3/2)=>21.

  9. Two pipes A and B can fill a tank in 5 and 6hrs.Pipe C can empty it in 12hrs.If all the 3 pipes are opened together,then the tank will be filled in
    1)1(13/17)hrs
    2)2(8/11)hours.
    3)3(9/17)hrs
    4)4(1/2)hrs
    3)3(9/17)hrs
    Exp:Net part filled in 1hr=>(1/5+1/6-1/12)=17/60
    Tank filled in=60/17=3(9/17).

  10. a/3=b/4=c/7 then find (a+b+c)/c.
    1)7
    2)2
    3)1/2
    4)1/7.
    2)2
    Exp: (3+4+7)/7=>14/2=2.