Quiz Discussion

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?

Course Name: Quantitative Aptitude

  • 1] 250 kg
  • 2] 275 kg
  • 3] 300 kg
  • 4] 266.66 kg
Solution
No Solution Present Yet

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# Quiz
1
Discuss

The population of a city is 35000. On an increase of 6% in the number of men and an increase of 4% in the number of women, the population would become 36760. What was the number of women initially?

  • 1] 18000
  • 2] 19000
  • 3] 17000
  • 4] 20000
Solution
2
Discuss

A student appeared in the Mock CAT. The test paper contained 3 sections namely QA, DI and VA. The percentage marks in all VA was equal to the average of percentage marks in all the 3 sections. Coincidentally, if we reverse the digit of the percentage marks of QA we get the percentage marks of DI. The percentage marks in VA scored by student could be:

  • 1] 81
  • 2] 48
  • 3] 66
  • 4] 69
  • 5] None of these
Solution
3
Discuss

If A's salary is 25% more than B's salary, then B's salary is how much lower than A's salary?

  • 1]

     %

  • 2]

    25%

  • 3]

    20%

  • 4]

Solution
4
Discuss

In an examination, questions were asked in five sections. Out of the total students, 5% candidates cleared the cut-off in all the sections and 5% cleared none. Of the rest, 25% cleared only one section and 20% cleared four sections. If 24.5% of the entire candidates cleared two sections and 300 candidates cleared three sections. Find out how many candidates appeared at the examination?

  • 1] 1000
  • 2] 1200
  • 3] 1500
  • 4] 2000
  • 5] 1800
Solution
5
Discuss

Narayan spends 30% of his income on education and 50% of the remaining on food. He gives Rs. 1000 as monthly rent and now has Rs. 1800 left with him. What is his monthly income?

  • 1] Rs. 8000
  • 2] Rs. 7000
  • 3] Rs. 9000
  • 4] Rs. 6000
Solution
6
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
7
Discuss

The length, breadth and height of a room in the shape of a cuboid are increased by 10%, 20% and 50% respectively. Find the percentage change in the volume of the cuboid.

  • 1] 77%
  • 2] 75%
  • 3] 88%
  • 4] 98%
  • 5] 99%
Solution
8
Discuss

When any number is divided by 12, then dividend becomes `1/4t h` of the other number. By how much percent first number is greater than the second number?

  • 1]

    150

  • 2]

    200

  • 3]

    300

  • 4]

    None Of These

Solution
9
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
10
Discuss

A and B are two fixed points 5 cm apart and C is a point on AB such that AC is 3cm. if the length of AC is increased by 6%, the length of CB is decreased by

  • 1] 6%
  • 2] 7%
  • 3] 8%
  • 4] 9%
Solution
# Quiz