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  • Question
  • How many window coverings are necessary to span 50 windows, if each window covering is 15 windows long?


  • Options
  • A. 4
  • B. 15
  • C. 3
  • D. 50

  • Correct Answer


  • Explanation

    Given that, 

    Number of windows = 50

    Each window covering covers 15 windows

    => 50 windows requires 50/15 window coverings

    = 50/15 = 3.333

     

    Hence, more than 3 window coverings are required. In the options 4 is more than 3. 

     

    Hence, 4 window coverings are required to cover 50 windows of each covering covers 15 windows.

  • Tags: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO, Database Administrator, IT Trainer

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    • 1. The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ?

    • Options
    • A. 384
    • B. 96
    • C. 192
    • D. 206
    • Discuss
    • 2. Three maths classes: A, B and C take an algebra test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. What is the average score of classes A, B, C ?

    • Options
    • A. 81
    • B. 78
    • C. 80.5
    • D. 81.5
    • Discuss
    • 3. It costs Rs. p each to send the first thousand messsages and Rs. q to send each subsequent one . If r is greater than 1,000, how many Rupees will it cost to send r messages ?

    • Options
    • A. 1000 (r - p) + pq
    • B. 1000 p + qr
    • C. 1000 (r - q) + pr
    • D. 1000(p - q) + qr
    • Discuss
    • 4. What will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is Rs. 58 ?

    • Options
    • A. Rs. 3748
    • B. Rs. 3847
    • C. Rs. 3944
    • D. Rs. 3154
    • Discuss
    • 5. In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was ?

    • Options
    • A. 15 kg
    • B. 25 kg
    • C. 35 kg
    • D. 45 kg
    • Discuss
    • 6. 16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the children of group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of group B ?

    • Options
    • A. 233/3
    • B. 243/4
    • C. 254/5
    • D. 345/7
    • Discuss
    • 7. The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is :

    • Options
    • A. 15
    • B. 20
    • C. 21
    • D. data inadequate
    • Discuss
    • 8. What is the average of four tenths and five thousandths

    • Options
    • A. 25002
    • B. 2502
    • C. 0.2025
    • D. none
    • Discuss
    • 9. The average of any 5 consecutive odd natural numbers is k . If two more such numbers , just next to the previous 5 numbers are added , the new average becomes

    • Options
    • A. 2(k+1)
    • B. 2k-3
    • C. 2k+1
    • D. k+2
    • Discuss
    • 10. The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then :

    • Options
    • A. x = y + z
    • B. 2x = y + z
    • C. 3x = 2y - 2z
    • D. none of these
    • Discuss


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