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  • Question

  • What is the cost of painting the two adjacent walls of a hall which has no windows or doors?
    I. The area of the hall is 24 m 2.
    II. The breadth, length and the height of the hall are in the ratio of 4 : 6 : 5.
    III. Area of one wall is 30 m 2.


  • Options
  • A. Only I
  • B. Only II
  • C. Only III
  • D. Either I or III

  • Correct Answer
  •  

    Explanation

    As per given all statements , we can see that
    I. The area of the hall = 24 m2
    II. The ratio of breadth, length and the height of the hall = 4 : 6 : 5
    From II, Let L = 4x , B = 6x and H = 5x
    Then, area of the hall = L × B = 4x × 6x
    = 24x2 m2
    ? Area of the hall = 24 m2
    ? 24x2 = 24 ? x = 1 m
    L = 4 x 1 = 4 m, B = 6 x 1 = 6 m and H = 5 x 1 = 5 m.
    III. Area of one wall = 30 m2
    Thus, area of two adjacent walls = [( L x H ) + ( B x H )] m2 can be found out and so the cost of painting two adjacent walls may not be found out.
    Cost of painting is not given, hence data inadequate.

    • Data Sufficiency problems

    Search Results

    • 1. 
      What is the total compound interest earned at the end of three years?
      I. Simple interest earned on that amount at the same rate and for the same period is $ 4500.
      II. The rate of interest is 10 p.c.p.a.
      III. Compound interest for three years is more than the simple interest for that period by $ 465.

    • Options
    • A. OnlyI and II
    • B. Only II and III
    • C. Only I and III
    • D. Anyone of the three
      • Discuss
    • 2. 
      What is the cost of flooring a rectangular hall?
      I. The length and the breadth of the hall are in the ratio of 3 : 2.
      II. The length of the hall is 48 m and the cost of flooring is $850 per m 2.
      III. The perimeter of the hall is 160 m and the cost of flooring is $850 per m 2.

    • Options
    • A. Only I and II
    • B. Only I and III
    • C. Only III
    • D. Only I and either II or III
      • Discuss
    • 3. 
      What is the average salary of 15 employees?
      I. Average salary of 7 clerical cadre (out of the 15 employees) employees is $ 8500.
      II. Average salary of 5 officer cadre (out of the 15 employees) employees is $ 10000.
      III. Average salary of the 3 sub-staff employees (out of the 15 employees) is $ 2500.

    • Options
    • A. None
    • B. Only I
    • C. Only II
    • D. Only III
      • Discuss
    • 4. 
      What is the percent profit earned by a shopkeeper on selling the articles in his shop?
      I. Labelled price of the articles sold was 130% of the cost price.
      II. Cost price of each article was $550.
      III. A discount of 10% on labelled price was offered.

    • Options
    • A. Only I
    • B. Only II
    • C. Only III
    • D. All the three are required.
      • Discuss
    • 5. 
      In how many days can a work be completed by A, B and C together?
      I. A and B together can complete the work in 6 days.
      II. B and C together can complete the work in 3 3 days
      4

      III. A and C together can complete the work in 3 1 days
      3


    • Options
    • A. Only I
    • B. Only II
    • C. Only III
    • D. Anyone of the three
      • Discuss
    • 6. 
      In how many days can 10 women finish a work?
      I. 10 men can complete the work in 6 days.
      II. 10 men and 10 women together can complete the work in 3 3 days
      7

      III. If 10 men work for 3 days and thereafter 10 women replace them, the remaining work is completed in 4 days.

    • Options
    • A. Only I and II
    • B. Any two of the three
    • C. Only I and III
    • D. Only II and III
      • Discuss
    • 7. Bar chart is suitable for

    • Options
    • A. Minor work
    • B. Large project
    • C. Major work
    • D. All of the above
      • Discuss
    • 8. The monthly expenditure of a person is Rs. 6000. The distribution of expenditure on various items is as follows: Item of expenditure Amount(in Rs.) Food 2000 Clothing 660 Fuel and rent 1200 Education 480 Miscellaneous 1660 If the above data is represented by a percentage bar diagram of height 15 cm, then what are the lengths of the two segments of the bar diagram corresponding to education and miscellaneous respectively?

    • Options
    • A. 1.25 cm and 5 cm
    • B. 1.2 cm and 4.15 cm
    • C. 1.2 cm and 3.5 cm
    • D. 4.15 cm and 6 cm
      • Discuss
    • 9. Surface roughness on a drawing is represented by

    • Options
    • A. Circle
    • B. Square
    • C. Curve
    • D. Triangle
      • Discuss
    • 10. The pie chart shows the number of shoes of 5 different brands in a multi brand store. There are total 1200 shoes.

    • Options
    • A. 230
    • B. 276
    • C. 286
    • D. 216
      • Discuss

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