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Aptitude Questions : Averages Set 9

By
Sheerin
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Hello Aspirants.

Welcome to Online Quantitative Aptitude Section with explanation in AffairsCloud.com. Here we are creating question sample in Averages, which is common for all the SBI,IBPS, RRB exam and other competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

  1. The average salary of 90 employees in an organization is Rs.14.500 per month. If the no of executive  is twice the no of clerks, then find the average salary of clerk ?
    1.11,500
    2.12,000
    3.13,200
    4.Can’t be determined
    5.None of these
    Answer – 4.Can’t be determined
    Explanation :
    90 => 2:1=> 60:30
    Total Salary = 60*salary of executive +30 * salary of clerk
    90*14500 = 60*x+30*y
    X, y not given so we can’t determine

  2. The average value of property of Agil, Mugilan and Anitha is Rs.130cr.The Property of Agil is 20cr greater than the property  value of Mugilan and Anitha property value is 50cr greater than the Agil property value. The value of property of Anitha is
    1.120cr
    2.170cr
    3.100cr
    4.150cr
    5.None of these
    Answer – 2.170cr
    Explanation :
    Property value of Mugilan x
    130*3 = x+x+20+x+20+50
    390 = 3x+90
    3x=300
    X=100
    Anitha = 100+20+50 = 170

  3. If the average marks of 1/5th  of class is 70% and 2/5th class is 45% and the average mark of remaining class is 60%, then the average % of the whole class is
    1.73%
    2.45%
    3.62%
    4.56%
    5.None of these
    Answer – 4.56
    Explanation :
    Avg = 100*[x/5 *70/100 + 2x/5 * 45/100 +2x/5*60/100 ] /x
    = 70+90+20/5
    =56

  4. The average price of 100 mobiles in an electronic shop is Rs.27,000. If the highest and lowest mobiles are sold out then the remaining 98 mobiles average price is 26,400.The cost of lowest mobile is Rs.18,000.Find the cost of highest mobile price
    1.76500
    2.94800
    3.96400
    4.82000
    5.None of these
    Answer – 2.94800
    Explanation :
    100*27000 – 98*26400 = 27,00,000 – 25,87,200 = 1,12,800
    The cost of highest mobile price = 1,12,800 -18,000 = 94800

  5. There are 10 compartments in passenger train carries on average 15 passengers per compartment. If atleast 15 passengers were sitting in each compartment, no any compartment has equal  no of passengers , and any compartment does not exceed  the number of average passengers except 10th compartment.Find how many passengers can be accommodated in 10th compartment ?
    1.38
    2.51
    3.47
    4.50
    5.None of these
    Answer – 2.51
    Explanation :
    No of passengers = 15*10 = 150
    15+14+13+12+11+10+9+8+7 = 99
    150 -99 = 51

  6. There are five times  the number of two wheelers as there are three wheelers. The no of four wheelers are equal to the number of two wheelers. Find the average number of wheel per vehicle ?
    1.5
    2.4
    3.2
    4.3
    5.None of these
    Answer – 4.3
    Explanation :
    No of 3 wheeler = x, no of wheels = 3x
    No of 2 wheeler = 5x, no of wheels = 10x
    No of 4 wheeler =5x, no of wheels = 20x
    Avg = 3x+10x+20x/x+5x+5x = 33x/11x = 3

  7. In a particular week the average number of people visited the museum is 70. If we exclude the holidays then the average number is increased by 28. Further if we exclude the day which the maximum of 210 visitors visited the museum, then the average become 40.Find the no of holidays in the week
    1.None
    2.One
    3.Three
    4.Two
    5.Can’t be determined
    Answer – 4.Two
    Explanation :
    Total no of visitors in a week = 70* 7 = 490
    X = no of holidays
    Exclude hloidays
    (7-x)*98 =490
    7-x = 5
    X = 2

  8. Arjun gets 62 marks out of 100 in English, 81 out of 120 in Chemistry and 75 out of 150 in maths. The average marks of Arjun(in %) in all the three subjects is
    1.60%
    2.53%
    3.47%
    4.72%
    5.None of these
    Answer – 1.60%
    Explanation :
    62/100 = 62%
    81/120 = 67.5%
    75/150 = 50%
    Avg = 62+67.5+50/3 = 179.5/3 = 59.8 = 60%

  9. The average salary of 120 employees in the bank is Rs.15,000 per month. If the no of assistant is thrice the no of POs and average salary of assistant is 1/3rd of the average salary of POs then find the average salary of POs ?
    1.18,000
    2.25,000
    3.36,000
    4.30,000
    5.None of these
    Answer – 4.30,000
    Explanation :
    120 = 1:3 =30:90 = PO : Assistant
    120*15000 = 30*x+ 90 *x/3
    18,00,000 = 90x+90x/ 3
    54,00,000*3 = 180x
    X = 30000

  10. In a class of 60 students 23 are girls. The average mark of boys is 45 and average mark of girls is 52. What is the average mark of the class?
    1.42.7
    2.52.2
    3.47.7
    4.62.1
    5.None of these
    Answer – 3.47.7
    Explanation :
    60 students => 23 G and 37 B
    Average = 23*52 + 37*45/ 60
    = 2965/60 = 47.7





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