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  • Question
  • In a class of 100 students, the average weight is 30 kg. If the average weight of the girls is 24 kg and that of the boys is 32 kg, then what is the number of girls in the class?


  • Options
  • A. 25
  • B. 26
  • C. 27
  • D. 28

  • Correct Answer
  • 25 


  • More questions

    • 1. 
      In a race of 600 m, A can beat B by 60 m and in a race of 500 m, B can beat C by 50 m. By how many meter will A beat C in a race of 400 m?

    • Options
    • A. 78 m
    • B. 56 m
    • C. 76 m
    • D. 86 m
    • Discuss
    • 2. 
      0.15 / (0.5 / 15) =?

    • Options
    • A. 4.5
    • B. 45
    • C. 0.03
    • D. 0.45
    • Discuss
    • 3. 
      For any integers a and b with HCF (a, b) = 1, what is HCF (a + b, a - b) equal to?

    • Options
    • A. It is always 1
    • B. It is always 2
    • C. Either 1 or 2
    • D. None of the above
    • Discuss
    • 4. 5358 x 51 =?

    • Options
    • A. 273258
    • B. 273268
    • C. 273348
    • D. 273358
    • Discuss
    • 5. Which of the following numbers is divisible by each one of 3, 7, 9 and 11?

    • Options
    • A. 639
    • B. 2079
    • C. 3791
    • D. 37911
    • E. None of these
    • Discuss
    • 6. 
      If the total sales for a business in a certain year were ? 132000. What were the sales in june, if june sales were half the monthly average?

    • Options
    • A. ? 8400
    • B. ? 7200
    • C. ? 5500
    • D. ? 6300
    • Discuss
    • 7. 
      If 0.8 x A = 0.09 x B, then find A : B.

    • Options
    • A. 9 : 80
    • B. 3 : 80
    • C. 80 : 9
    • D. 7 : 80
    • Discuss
    • 8. 
      A 4% stock yield 5%. The market value of the stock is?

    • Options
    • A. Rs. 125
    • B. Rs. 80
    • C. Rs. 99
    • D. Rs. 109
    • Discuss
    • 9. 
      The product of 3.5413 x 2.1 is

    • Options
    • A. 7.44673
    • B. 7.43673
    • C. 7.53673
    • D. None of these
    • Discuss
    • 10. 
      Maganlal, a worker, makes an article in every 2/3h. If he works for 7 1/ 2h, then how many articles will he make?

    • Options
    • A. 111/4
    • B. 111/3
    • C. 112/6
    • D. 112/5
    • Discuss


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