Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

If 4 over 5 th of a number exceeds its 3 over 4 th by 8, then the number is:

  • 130

  • 120

  • 160

  • 150

103 Views

52.

The rate of discount being given on a shirt, where selling price is Rs. 546 after deducting a discount of Rs. 109/- on its marked price is

  • 14%

  • 18%

  • 15%

  • 16%

44 Views

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53.

If the ratio of two numbers is 1 : 5 and their product is 320, then the difference between the square of these two numbers is

  • 1024

  • 1256

  • 1536

  • 1435


C.

1536

Let the numbers be x and 5x respectively.
According to the question,
   straight x space cross times space 5 straight x space equals space 320
rightwards double arrow space space 5 straight x squared space equals space 320
rightwards double arrow space space straight x squared space equals space 320 over 5 space equals space 64 space rightwards double arrow space space straight x space equals space 8
∴   Difference between the squares of these two numbers
      = (5 x 8)2 - (8)2 = 1600 - 64 = 1536

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54.

Number of boys and girls are 'x' and 'y' respectively; ages of a girl and a boy are 'a' years and 'b' years respectively. The average age (in years) of all boys and girls is

  • fraction numerator straight x space plus space straight y over denominator bx space plus space ay end fraction

  • fraction numerator bx plus ay over denominator straight x plus straight y end fraction

  • fraction numerator ax plus by over denominator straight x plus straight y end fraction

  • fraction numerator straight x plus straight y over denominator ax plus by end fraction

53 Views

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55.

A man bought 30 defective machines for Rs. 1,000/-. He repaired and sold them at the rate of Rs. 300 per machine. He got profit of Rs. 150 per machine. How much did he spend on repairs? (in Rs)

  • Rs 5,500

  • Rs 4,500

  • Rs 3,500

  • Rs 2,500

59 Views

56.

x is 5 times longer than y. The percentage by which y is less than x is

  • 50%

  • 40%

  • 80%

  • 70%

70 Views

57.

A motor cycle gives an average of 45 km per litre. If the cost of petrol is Rs. 20 per litre. The amount required to complete journey of 540 km is (in Rs):

  • Rs. 120/-

  • Rs. 360/-

  • Rs. 200/-

  • Rs. 240/-

51 Views

58.

A sum of money amounts to Rs 6,655/- at the rate of 10% compounded annually for 3 years. The sum of money is:

  • Rs 5,000

  • Rs 5,500

  • Rs 6,000

  • Rs 6,100

70 Views

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59.

If x2 - 4x + 1 = 0,   the value of fraction numerator straight x to the power of 6 plus 1 over denominator straight x cubed end fraction space is:

  • 48

  • 52

  • 55

  • 58

45 Views

60.

If left parenthesis straight a minus 2 right parenthesis space plus space fraction numerator 1 over denominator left parenthesis straight a space plus space 2 right parenthesis end fraction space equals space minus 1, then the value of left parenthesis straight a plus 2 right parenthesis squared space plus space fraction numerator 1 over denominator left parenthesis straight a plus 2 right parenthesis squared end fraction is

  • 7

  • 11

  • 23

  • 27

40 Views

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