At what percentage above the cost price must an article be marked

Subject

Quantitative Aptitude

Class

SSCCGL Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in

  • 5 days

  • 6 days

  • 10 days

  • 12 days

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52.

A spherical lead ball of radius 6 cm is melted and small lead balls of radius 3 mm are made. The total number of possible small lead balls is:

  • 4250

  • 4000

  • 8005

  • 8000

80 Views

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53.

At what percentage above the cost price must an article be marked so as to gain 33% after allowing a customer a discount of 5%?

  • 40%

  • 45%

  • 35%

  • 47%


A.

40%

Shortcut Method:
space equals space fraction numerator left parenthesis 100 space plus space profit space divided by loss percent sign right parenthesis over denominator left parenthesis 100 minus discount percent sign right parenthesis end fraction space cross times space 100 space minus space 100
equals space fraction numerator left parenthesis 100 space plus space 33 right parenthesis over denominator left parenthesis 100 minus 5 right parenthesis end fraction space cross times space 100 space minus space 100
equals space 133 over 95 space cross times space 100 space minus space 100
equals space space 140 space minus space 100
equals space 40 percent sign

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54.

The four sides of a quadrilateral are in the  ratio of 2 : 3 : 4 : 5 and its perimeter is 280 m. The length of the longest side is:

  • 100 m

  • 150 m

  • 175 m

  • 180 m

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55.

Kamal has some apples. He sold 40% more than he ate. If he sold 70 apples, how many did he eat?

  • 18

  • 42

  • 50

  • 90

104 Views

56.

A train 100 m long is running at a speed of 120 km/hr. The time taken to pass a person standing near the lines is

  • 1 sec

  • 3 sec

  • 5 sec

  • 7 sec

52 Views

57.

If x2 + 5x + 6 =  0,   then the value of fraction numerator 2 straight x over denominator straight x squared minus 7 straight x plus 6 end fraction is:

  • 1 over 6

  • 1 third

  • negative 1 over 6

  • negative 1 third

55 Views

58.

If a + b = 5   and   a - b = 3, then the value of (a2 + b2) is

  • 17

  • 18

  • 19

  • 20

54 Views

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59.

A 8 cm long perpendicular is drawn from the centre of a circle to a 12cm long chord. The diameter of the circle is

  • 10 cm

  • 12 cm

  • 16 cm

  • 20 cm

55 Views

60.

The point equidistant from the sides of a triangle is called:

  • Circumcenter

  • Incentre

  • Orthocentre

  • Centroid

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