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 Multiple Choice QuestionsMultiple Choice Questions

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1.  ‘A’ can do a piece of work in 20 days and ‘B’ can do the same work in 15 days. How long will they take to finish the work, if both work together?
  •  13(1/2) days
  • 10 days
  • 8(4/7) days
  • 8(4/7) days
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2.

A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 20 days, she has to pay Rs. 1000 as hostel char ges whereas a student B, who takes food for 26 days, pays Rs. 1180 as hostel charges.
Find the fixed charges and the cost of food per day.

  • 300, 30

  • 400, 40

  • 200, 20

  • 200, 20

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3.

A library has an average of 510 visitors on Sundays and 240 on other days. What is the average number of visitors per day in the month of June beginning with a Sunday?

  • 250

  • 280

  • 285

  • 285

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4.

12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.

  • 7/12

  • 11/12

  • 10/12

  • 10/12

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5.

A man earns Rs. 20 on the first day and spends Rs. 15 on the next day. He again earns Rs. 20 on the third day and spends Rs. 15 on the fourth day. If he continues to save in this way, how soon will he have Rs. 60 in hand?

  • on 27th day

  • on 24th day

  • on 12th day

  • on 12th day

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6.

Four gardeners with four grass mowers mow 400
square metres of ground in four hours. How long
would it take for eight gardeners with eight grass
mowers to mow 800 square metres of ground ?

  • 8 hours

  • 6 hours

  • 12 hours

  • 12 hours

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7.

Two men and seven boys can do a work in 14 days. Three men and eight boys can do the same work in 11 days. Further eight men and six boys can do three times the amount of this work in:

  • 21 days

  • 18 days

  • 24 days

  • 24 days

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