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SBI Clerk 2019 Aptitude Test - 1
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SBI Clerk 2019 Aptitude Test - 1
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  • Question 1/10
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    A milk man makes a profit of 10% on the sale of milk. If he were to add water such that it makes up to 20% of the mixture, by how many percentage points would his profit increase?

    Solutions

    Let’s assume cost of 1 liter of milk = Rs 100n

    Hence the selling price of 1 liter of milk = Rs (1.1 X 100n) = Rs 110n

    According to the question now 20% water is there in 1 liter of milk and water mixture hence amount of milk in the 1 liter of resulting mixture = 80% of 1 liter = 800 ml

    Now price of the new mixture = 80% of 100n = 80n

    Now in this case, Cost price = Rs 80n

    Selling Price = Rs 110n

    Hence profit % = (110n-80n)/80n X 100 = 37.5%

    Now increase in percentage points = 37.5 – 10 = 27.5

     

  • Question 2/10
    1 / -0

    In a test, minimum passing percentage for girls and boys is 60% and 25% respectively. A boy scored 560 marks and failed by 160 marks. How many more marks did a girl require to pass in the test if she scored 216 marks?

    Solutions

    Total marks in the test = (560 + 160) × 100 /25

    = 720 ×100/25

    = 72000/25

    = 2880

    Passing marks for girls =2880 × 60/100

    = 1728

    Required marks = 1728 – 216

    = 1512

     

  • Question 3/10
    1 / -0

    A Super fast train overtakes two persons walking along a railway track. The first one walks at 9 km/hr. The other one walks at 10.8 km/hr. The train needs 16.8 and 17seconds respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train?

    Solutions

    Given that the first one walks at 9 km/hr

    convert the speed in the unit of m/sec

    9 km/hr = (9*5/18) m/s

    = 5/2 m/s

    = 2.5 m/s

    Another one walks at 10.8 km/hr

    convert the speed in the unit of m/sec

    10.8 km/hr = (10.8*5/18)m/s

    = 3 m/s

    Let the speed of the train be x m/sec.

     (x- 2.5)*16.8 = ( x-3)*17

    16.8x  - 42 = 17x -51

    0.2 x =9

    x = 45 m/s

    convert the speed in the unit of km/hr

    Speed of the train  = (45*18/5)kmph

    Speed of the train  = 162 km/ hr

     

  • Question 4/10
    1 / -0

    Preethi owns lenova mobile in a showroom. She labelled the price of mobile to earn a profit of 20% on the cost price. She sold the mobile by offering a discount of 10% on the labelled price. What is the actual percent profit earned?

    Solutions

    Let the CP of mobile= Rs 100

    then the labelled price= Rs.120

    SP= Rs. 120-10%of 120 = RS120-12= Rs 108

    gain= Rs 108- Rs 100 = Rs 8

    gain%= 8/100*100=8%

     

  • Question 5/10
    1 / -0

    A bakery P can sold 500 breads in 4 hours, bakery Q can sold the same number of bread in 5 hrs while bakery R can sold them in 6 hrs. All the bakeries are opened at 8 a.m while bakery P is closed at 9 a.m and the remaining 2 bakeries complete their target. Approximately at what time will the work be finished?

    Solutions

    (P+Q+R)’s 1 hour work = (1/4 +1/5+ 1/6)

    =15+12+10/60

    =37/60

    Remaining work = 1- 37/60 = 23/60

    (Q+R)’s 1 hour work = 1(/5 +1/6)

    =11/30

    Now 11/30 work is done by Q and R in 1 hour

    So 23/60 work will be done by Q and R in(30/11*23/60)

    =23/22 hrs = 1hr

    So the work will be finished approximately 1 hr after 9.am i.e., around 10 a.m

     

  • Question 6/10
    1 / -0

    What approximate value should come in place of question mark (?) in the following questions?

    184.96% of 4699.658 + 274.93% of 6279.88 – 648 =?

    Solutions

    ? = 184.96% of 4699.658 + 274.93% of 6279.88 – 648

    = (185/100)×4700 + (275/100) ×6280 – 648

    = 185 × 47 + 200 % of 6280 + 75% of 6280 – 648 = 8695 + 12560 + 4710 – 648

    ?= 8695+17270 – 648 = 25317 = 25320

     

  • Question 7/10
    1 / -0

    What approximate value should come in place of question mark (?) in the following questions?

    8789.879 ÷ 375.002 × 24.996 + 6937.004 =?

    Solutions

    ? = 8789.879 ÷ 375.002 × 24.996 + 6937.004

    = 8790 ÷ 375 × 25 + 6937

    = (8970/375) × 25 + 6937 = (8790/15) + 6937 = 586 + 6937 = 7523 = 7525

     

  • Question 8/10
    1 / -0

    What approximate value should come in place of question mark (?) in the following questions?

    (17.67)2 + (16.87)3 – (8.947)3 ÷ 103.897 = ?

    Solutions

    (17.67)2 + (16.87)3 – (8.947)3 ÷103.897 = ?

    Or, ? = (17.7)2 + (16.9)3 – (9)3 ÷ 104

    = 313.29 + 4826.809 – 729 ÷ 104

    = 313 + 4827 – 7 = 5133 = 5130

     

  • Question 9/10
    1 / -0

    What approximate value should come in place of question mark (?) in the following questions?

    2  3/10 × 5  6/7 × 7 ½ = ?

    Solutions

    2 3/10 × 5 6/7 × 7 ½ = ?

     = (23/10) × (41/7) × (15/2)

    = 14145/140 = 101 = 100

     

  • Question 10/10
    1 / -0

    What approximate value should come in place of question mark (?) in the following questions?

    47.03 × 37.03 + 12.03 × 2√(34595) = ?

    Solutions

    47.03 × 37.03 + 12.03 × 2√(34595) = ?

     = 47 × 37 + 12 × 2 × √(34595)

    = 47 × 37 + 12 × 2 × 186 = 1739 + 4464

    = 6203 = 6200

     

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