Practice Question and Answer

Q:

A, B and C can complete a piece of work in 10, 12, and 15 days respectively, They started the work together. But A left the work before 5 days of its completion. B also left the work 2 days after A left. In how many days was the work completed?

1754 0

  • 1
    4 days
    Correct
    Wrong
  • 2
    5 days
    Correct
    Wrong
  • 3
    7 days
    Correct
    Wrong
  • 4
    8 days
    Correct
    Wrong
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Answer : 3. "7 days"

Q:

A can do a piece of work in 20 days and B in 30 days. They work together for 7 days and then both leave the work.  Then C alone finishes the remaining work in 10 days. In how many days will C finish the full work?

1611 0

  • 1
    25 days
    Correct
    Wrong
  • 2
    30 days
    Correct
    Wrong
  • 3
    24 days
    Correct
    Wrong
  • 4
    20 days
    Correct
    Wrong
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Answer : 3. "24 days"

Q:

In what proportion must a grocer mix sugar at Rs. 12 a kg and Rs. 7 a   kg Sugar as to make a mixture worth Rs 8. a kg?

2007 0

  • 1
    7:12
    Correct
    Wrong
  • 2
    1:4
    Correct
    Wrong
  • 3
    2:3
    Correct
    Wrong
  • 4
    12:7
    Correct
    Wrong
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Answer : 2. "1:4"

Q:

Alcohol and water in two vessels A and B are in the ratio 5:3 and 5:4 respectively. In what ratio, the liquid of in both the vessels be mixed to obtain a new mixture in vessel C in the ratio 7:5?

2176 0

  • 1
    2:3
    Correct
    Wrong
  • 2
    3:2
    Correct
    Wrong
  • 3
    3:5
    Correct
    Wrong
  • 4
    2:5
    Correct
    Wrong
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Answer : 1. "2:3"

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