If then the value of  is equal to from Quantitative Aptitude

Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

If the sum of a number and its reciprocal be 2, then the number is

  • 0

  • 1

  • -1

  • -1

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52.

The area of a rectangle is 60 cm2 and its perimeter is 34 cm, then the length of the diagonal is

  • 17 cm

  • 11 cm

  • 15 cm

  • 15 cm

210 Views

53.

A cloth merchant has announced 25% rebate in prices. If one needs to have a rebate of ₹ 40/-, then how many metres of cloth costing ₹ 32 per metre he should purchase?

  • 6 m

  • 5 m

  • 10 m

  • 10 m

334 Views

54.

A profit of Rs 960 is divided between A and B in the ratio 1 third colon 1 fifth. The difference of their profit is

  • ₹ 120/-

  • ₹ 160/-

  • ₹ 180 /- 

  • ₹ 180 /- 

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55.

The average monthly salary of 19 members of a group is ₹ 16000/-. If one more members whose monthly salary is ₹ 20000/- has joined the group, then the average salary of the group is

  • ₹ 18,250

  • ₹ 16,200

  • ₹ 18,000

  • ₹ 18,000

183 Views

56.

A T.V was sold at a profit of 5% If it had been sold at a profit of 10%, the profit would have been ₹ 1000/- more. What is its cost price?

  • ₹ 20,000

  • ₹ 5,000

  • ₹ 10,000

  • ₹ 10,000

155 Views

57.

The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by

  • 9 1 over 11 percent sign
  • 10%

  • 11%

  • 11%

127 Views

58.

A moving train passes a platform 50 m long in 14 sec and a lamp post in 10 sec. The speed of the train (in km/h) is

  • 24

  • 36

  • 40

  • 40

789 Views

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59.

If straight x squared plus 1 over straight x squared equals space space 2 comma space then the value of straight x minus 1 over straight x is

  • -2

  • 0

  • 1

  • 1

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60.

If pq left parenthesis straight p plus straight q right parenthesis space equals space 1 comma spacethen the value of fraction numerator 1 over denominator straight p cubed straight q cubed end fraction minus straight p cubed minus straight q cubed is equal to

  • 1

  • 2

  • 3

  • 3


C.

3

pq left parenthesis straight p plus straight q right parenthesis space equals space 1 space space space space space space space space space space space space space space space space space space space space space space space space space space... left parenthesis straight i right parenthesis
space space space space 1 over pq space equals space straight p plus straight q
space space space space fraction numerator 1 over denominator straight p cubed straight q cubed end fraction space equals space straight p cubed plus straight q cubed plus 3 pq left parenthesis straight p plus straight q right parenthesis
space space space space fraction numerator 1 over denominator straight p cubed straight q cubed end fraction space equals space straight p cubed plus straight q cubed plus 3 space cross times space 1 space space space space space space space space space left square bracket From space equation space left parenthesis straight i right parenthesis right square bracket
space space space fraction numerator 1 over denominator straight p cubed straight q cubed end fraction space equals space straight p cubed minus straight q cubed space equals space 3
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