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Mix Test - 7

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Weekly Quiz Competition
  • Question 1
    1 / -0.25

    In simplified form (30 + 40 + 50)0 is equals to

    Solution

    Any number to the power 0 is equal to one
    (30 + 40 + 50)0 = (1 + 1 + 1)0 = 30 = 1

     

  • Question 2
    1 / -0.25

    The list price of a skirt is Rs 330. A discount of 20% is announced on sales. What is the amount of discount?

    Solution

    List Price of the skirt = Rs 330

    Discount = 20% of 330

    = 20/100 × 330

    = Rs 66

     

  • Question 3
    1 / -0.25

    A shop gives 20% discount. What would the sale price of a pair of shoes marked at Rs 750?

    Solution

    Marked price = Rs 750
    Discount = 750×20/100
    = Rs 150
    Selling price = (750 - 150)
    = Rs 600

     

  • Question 4
    1 / -0.25

    A number, the sum of whose fourth and fifth parts exceeds their third part by 28, is:

    Solution

     

  • Question 5
    1 / -0.25

    An item marked at Rs 540 is sold for Rs 500. What is the discount amount?

    Solution

    Discount = Rs 540 - 500 (Marked price - Sales price)
    = Rs 40

     

  • Question 6
    1 / -0.25

    An item marked at Rs 840 is sold for Rs 714. What is the discount amount?

    Solution

    Discount = 840 - 714 (marked price - sale price)
    = Rs 126

     

  • Question 7
    1 / -0.25

    If x : y = y : z, then x = ?

    Solution

     

  • Question 8
    1 / -0.25

    Calculate the simple interest on Rs 20,000 for 2 years at 10% per annum.

    Solution

    Principal (P) = Rs 20,000, Rate(R) = 10%, Time(T) = 2 years

    = Rs 4,000

     

  • Question 9
    1 / -0.25

    Without doing any calculation, find the numbers which are surely perfect squares:

    Solution

    2025 is a perfect square as it ends with 5 at the unit's place whereas the other numbers 2657, 2688, and 2673 ends with 7, 8, and 3 at the unit's place and a perfect square never end with 2, 3, 7 and 8 at unit's place.

     

  • Question 10
    1 / -0.25

    The length is 5 pieces of a string in cms are : 5, 5.2, 6.3, 7.2, 6.3. The average length of a piece is :

    Solution

     

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