Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?

  • 2

  • 4

  • 6

  • 8


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52.

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6 days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

  • 10 days

  • 12 days

  • 14 days

  • 16 days


C.

14 days

Shortcut Method:
Let the total work gets completed in 'x' days.
Now,
4 over 20 space plus space fraction numerator straight x minus 6 over denominator 24 end fraction space plus space straight x over 30 space equals space 1
rightwards double arrow space space fraction numerator 6 space cross times space 4 space plus space 5 left parenthesis straight x minus 6 right parenthesis space plus space 4 straight x over denominator 120 end fraction space equals space 1
rightwards double arrow space space space space 24 space plus space 5 straight x space minus space 30 space plus space 4 straight x space equals space 120
rightwards double arrow space space space space space space space space space space space space space 9 straight x space equals space 126
rightwards double arrow space space space space space space space space space space space space straight x space equals space 14 space days


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53.

A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?

  • 289 cm2

  • 361.5 cm2

  • 481.25 cm2

  • 962.5 cm2


54.

After a discount of 34% an article is sold for ₹ 3,168/-. What is the marked price (in ₹) of the article?

  • ₹ 4,750/-

  • ₹ 4,800/-

  • ₹ 4,850/-

  • ₹ 5,000/-


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55.

If 3 over 7 straight P space equals space 4 over 11 straight Q comma  then what is the ratio of P and Q respectively?

  • 12 : 77

  • 12 : 33

  • 28 : 33

  • 3 : 28


56.

The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?

  • 39

  • 78

  • 117

  • 156


57.

For an article the profit is 170% of the cost price. If the cost price increases by 20% but the selling price remains same, then what is the new profit percentage?

  • 41%

  • 50%

  • 75%

  • 125%


58.

32% of a number exceeds 17% of the same number by 120. What is the value of the number?

  • 900

  • 860

  • 940

  • 800


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59.

A boat goes 15 upstream and 10 1 half km downstream in 3 hours 15 minutes. It goes 12 km upstream and 14  km downstream in 3 hours. What is the speed of boat in still water.

  • 4 km/hr

  • 6 km/hr

  • 10 km/h

  • 14 km/hr


60.

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to ₹ 250/- less than the sum lent. What was the sum lent (in ₹)?

  • ₹ 1,000/-

  • ₹ 1,500/-

  • ₹ 2,400/-

  • ₹ 3,000/-


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