Practice Question and Answer

Q: A women goes to market with Rs.500 to buy oranges.the prices of the oranges have decreased by 10% so he could buy 2kg more with the amount she had.What was the original price of the oranges ? 3678 0

  • 1
    22.77
    Correct
    Wrong
  • 2
    25.77
    Correct
    Wrong
  • 3
    27.77
    Correct
    Wrong
  • 4
    29.77
    Correct
    Wrong
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Answer : 3. "27.77"
Explanation :

Answer: C) 27.77 Explanation: If the price of the oranges decreases by 10%, the woman would save 10% of the money that is Rs.50 to buy the same amount as before.Now in Rs. 50 she can buy 2 kg more, therefore the current price of 1 kg of oranges is Rs25.Now, this current price is after 10% reduction.       Therefore, the original price =  25/0.9  = Rs. 27.77

Q: In a Certain Country 1/2 of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10 ? 1941 0

  • 1
    4
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 1. "4"
Explanation :

Answer: A) 4 Explanation: Let 1310 = x  => 3x = 10   Given that 125=3   Therefore, 52x = 10    => x = 10/3 = 4.

Q: Arrange four nines(9) and a one(1) and only one mathematical symbol to make it equal to 100 ? 2115 0

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Answer :
Explanation :

199 - 99  = 100

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Answer :
Explanation :

Let the 5 digit number be represented by abcde. Then the 6 digit number, 1abcde x 3 = abcde1 (another 6 digit number) Now let Y = abcde Then (100000 + Y) x 3 = (Y x 10) + 1 300000 + 3Y = 10Y + 1 7Y = 299999 Y = 299999 ÷ 7 = 42857

Q: Which number multiplied by itself will give the output as 12345678987654321 ? 1944 0

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Answer :
Explanation :

11 * 11 = 121 111 * 111 = 12321 what we observe is that the square of the number follows a pattern: 2 1's gives 121. 3 1's gives 12321. so to get 12345678987654321 we need to get square of 9 1's(111,111,111).

Q: Which containers use a border Layout as their default layout ? 1218 0

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Answer :
Explanation :

The window, Frame and Dialog classes use a border layout as their default layout.

Q: Which containers use a FlowLayout as their default layout ? 1374 0

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Answer :
Explanation :

The Panel and Applet classes use the FlowLayout as their default layout.

Q: Who is the father of Green Revolution in India? 1508 0

  • 1
    Jayanth C Narlikar
    Correct
    Wrong
  • 2
    Amartyasen
    Correct
    Wrong
  • 3
    RK Pachowry
    Correct
    Wrong
  • 4
    M.S. Swaminathan
    Correct
    Wrong
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Answer : 4. "M.S. Swaminathan"
Explanation :

Answer: D) M.S. Swaminathan Explanation:

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