Maths Practice Question and Answer

Q: The list price of a clock is Rs 160. A customer buys it for Rs. 122.40 after two successive discount. If first discount is 10% the second is 2567 1

  • 1
    10%
    Correct
    Wrong
  • 2
    12%
    Correct
    Wrong
  • 3
    15%
    Correct
    Wrong
  • 4
    18%
    Correct
    Wrong
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Answer : 3. " 15%"

Q:

If a + b + c = 12, a2 + b2 + c2 = 52, then what is ab + bc + ca equal to-

2564 0

  • 1
    124
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    46
    Correct
    Wrong
  • 4
    75
    Correct
    Wrong
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Answer : 3. "46"

Q: Mr Amin borrowed a certain sum from Mr Visvas. He borrowed for first 2 year at 8% per annum, for next 3 years at 11% per annum and beyond that at 14% per annum. Mr Amin paid Rs 10,920 as Simple interest in 8 years. Find how much he had borrowed? 2559 0

  • 1
    Rs 12000
    Correct
    Wrong
  • 2
    Rs 15000
    Correct
    Wrong
  • 3
    Rs 14000
    Correct
    Wrong
  • 4
    Data insufficient
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "Rs 12000"
Explanation :

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Q:

The ratio of two numbers is 4:5 and their LCM is 120. The numbers are

2556 0

  • 1
    30, 40
    Correct
    Wrong
  • 2
    40, 32
    Correct
    Wrong
  • 3
    24, 30
    Correct
    Wrong
  • 4
    36, 20
    Correct
    Wrong
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Answer : 3. "24, 30"

Q:

Royalty on the book is less than the printing cost by :

2540 0

  • 1
    5 %
    Correct
    Wrong
  • 2
    10 %
    Correct
    Wrong
  • 3
    20 %
    Correct
    Wrong
  • 4
    25 %
    Correct
    Wrong
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Answer : 4. "25 %"
Explanation :

 Printing Cost of book = 20% of C.P.
Royalty on book = 15% of C.P
Difference = (20% of C.P) – (15% of C.P) = 5% of C.P.
⸫ Percentage difference =
=  = 25% = 25%
Thus, Royalty on the book is 25% less than the printing Cost. 

Q:

Train Passes by a lamp post at platform in 7 sec. and passes by the platform completely in 28 sec. If the length of the platform is 390 m,then length of train (in meter) is

2536 0

  • 1
    120
    Correct
    Wrong
  • 2
    130
    Correct
    Wrong
  • 3
    140
    Correct
    Wrong
  • 4
    150
    Correct
    Wrong
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Answer : 2. "130"

Q:

By selling 15 mangoes, a fruit seller gains the selling price of 3 mangoes. His gain is

2534 0

  • 1
    25%
    Correct
    Wrong
  • 2
    16%
    Correct
    Wrong
  • 3
    24%
    Correct
    Wrong
  • 4
    27%
    Correct
    Wrong
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Answer : 1. "25%"

Q:

A number when divided successively by 4 and 5 leaves the remainder 1 and 4 respectively. When it is successively divided by 5 and 4 the respective remainders will be: 

2529 0

  • 1
    4, 1
    Correct
    Wrong
  • 2
    3, 2
    Correct
    Wrong
  • 3
    2, 3
    Correct
    Wrong
  • 4
    1, 2
    Correct
    Wrong
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Answer : 3. "2, 3 "

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