Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

121.

The value of 204 x 197 is

  • 40188

  • 40212

  • 39812

  • 39812

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122.

The value of open curly brackets open parentheses straight n square root of straight x squared end root close parentheses to the power of straight n over 2 end exponent close curly brackets squared is

  • x

  • straight x to the power of straight n divided by 2 end exponent
  • straight x squared
  • straight x squared
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123.

If  then find the value of n.

  • 2

  • 3

  • 4

  • 5

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124.

If P = 99, then the value of straight p left parenthesis straight p squared plus 3 straight p plus 3 right parenthesis is

  • 9999999

  • 1000001

  • 999999

  • 999999


C.

999999

Here, P = 99
therefore  straight P left parenthesis straight P squared plus 3 straight p plus 3 right parenthesis
           equals space 99 left square bracket left parenthesis 99 right parenthesis squared plus 3 space cross times space 99 space plus space 3 right square bracket
            space equals space left parenthesis 100 space minus space 1 right parenthesis space open square brackets left parenthesis 100 minus 1 right parenthesis squared plus 3 left parenthesis 100 minus 1 right parenthesis plus 3 close square brackets
equals space left parenthesis 100 minus 1 right parenthesis space open square brackets 10000 plus 1 space minus 200 plus 300 minus 3 plus 3 close square brackets
equals space left parenthesis 100 minus 1 right parenthesis left square bracket left parenthesis 10000 plus 101 right square bracket
equals space left parenthesis 100 minus 1 right parenthesis thin space left parenthesis 10101 right parenthesis
equals 1010100 space minus space 10101 space equals space 999999
          

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125.

If 2 straight x plus 3 straight y space equals space 11 over 2 and xy space equals space 5 over 6, then the value of 8 straight x cubed plus 27 straight y cubed is

  • 583 over 4
  • 187

  • 671 over 8
  • 671 over 8
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126.

If straight x to the power of 4 plus 1 over straight x to the power of 4 space equals space 119, then the value of straight x cubed minus 1 over straight x cubed

  • 36

  • -36

  • plus-or-minus 36
  • plus-or-minus 36
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127.

If open curly brackets 1 half left parenthesis straight a minus straight b right parenthesis close curly brackets squared space plus space ab space equals space straight p left parenthesis straight a plus straight b right parenthesis squared comma then the value of p is (assume that straight a not equal to negative straight b)

  • 1

  • 1 half
  • 1 fourth
  • 1 fourth
132 Views

128.

If 999x + 888y = 1332  and  888x + 999y = 555, then straight x squared minus straight y squared is equal to

  • 5

  • 7

  • 8

  • 8

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129.

In two similar triangles ABC and MNP, if AB = 2.25 cm, MP = 4.5 cm and PN = 7.5 cm and mangle ACB = mangle MNP and mangle ABC = mangle MPN, then the length of side BC with bar on top, (in cm) is

  • 3.75

  • 4.75

  • 3.5

  • 3.5

205 Views

130.

Given an equilateral increment ABC, D, E, F are the mid-points of AB, BC and AC respectively. Then, the quadrilateral BEFD is exactly a

  • square

  • rectangle

  • trapezium

  • trapezium

200 Views

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