Quiz Discussion

Out of the total production of iron from hematite, an ore of Iron, 20% of the ore gets wasted, and out of the remaining iron, only 25% is pure iron. If the pure iron obtained in a year from a mine of hematite was 80,000 kg, then the quantity of hematite mined from that mine in the year is

 

Course Name: Quantitative Aptitude

  • 1] 5,00,000 kg
  • 2] 4,00,000 kg
  • 3] 4,50,000 kg
  • 4] None of these
Solution
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# Quiz
1
Discuss

The employer reduces the number of employees in the ratio 9: 8 and increases their wages in the ratio 14: 15 If the previous wage bill was Rs 189000 what is the amount by which the new wage bill will increase or decrease?

  • 1]

    Rs 21000

  • 2]

    Rs 10000

  • 3]

    Rs 9000

  • 4]

    Rs 25000

Solution
2
Discuss

The average weight of a class of students is 67.5 kg. The weight of the class teacher is 25% more than the average weight of the class. The average weight of the class is less than the class teacher by x%. The value of x is:

  • 1] 33.335
  • 2] 25%
  • 3] 20%
  • 4] 22%
Solution
3
Discuss

A clock is set right at 12 noon on Monday. It losses 1/2 % on the correct time in the first week but gains 1/4 % on the true time during the second week. The time shown on Monday after two weeks will be

 

  • 1] 12 : 25 : 12
  • 2] 11 : 34 : 48
  • 3] 12 : 50 : 24
  • 4] 12 : 24 : 16
  • 5] None of these
Solution
4
Discuss

An inspector rejects 0.08% of the meters as defective. How many will he examine to reject 2?

  • 1]

    2000

  • 2]

    2200

  • 3]

    2500

  • 4]

    2800

Solution
5
Discuss

An ore contains 25% of an alloy that has 90% iron. Other than this, in the remaining 75% of the ore, there is no iron. How many kilograms of the ore are needed to obtain 60 kg of pure iron?

  • 1] 250 kg
  • 2] 275 kg
  • 3] 300 kg
  • 4] 266.66 kg
Solution
6
Discuss

The cost of a car is 400% greater than the cost of a bike. If there is an increase in the cost of the car is 15% and that of bike 20%. Then the total increase in the cost of the 5 cars and 10 bikes is:

  • 1]

    17.5%

  • 2]

    %

  • 3]

    18.5%

  • 4]

    18.25%

Solution
7
Discuss

220% of a number X is 44. What is 44% of X.

  • 1] 8.8
  • 2] 8.9
  • 3] 6.6
  • 4] 7.7
Solution
8
Discuss

A customer asks for the production of x number of goods. The company produces y number of goods daily. Out of which z% are units for sale. The order will be completed in :

  • 1]

      days

  • 2]

    days

  • 3]

    days

  • 4]

    days

  • 5]

    Cannot determined

Solution
9
Discuss

The length, breadth and height of a room are in ratio 3:2:1. If breadth and height are halved while the length is doubled, then the total area of the four walls of the room will

  • 1] remain the same
  • 2] decrease by 13.64%
  • 3] decrease by 15%
  • 4] decrease by 18.75%
  • 5] decrease by 30%
Solution
10
Discuss

The price of the sugar rise by 25%. If a family wants to keep their expenses on sugar the same as earlier, the family will have to decrease its consumption of sugar by

  • 1] 25%
  • 2] 20%
  • 3] 80%
  • 4] 75%
Solution
# Quiz