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 population of a town increases every year by 4%. If its present population is 50,000, then after 2 years it will be

  • 1] 53,900
  • 2] 54,000
  • 3] 54,080
  • 4] 54,900
Solution
2
Discuss

In an office in Singapore there are 60% female employees. 50 % of all the male employees are computer literate. If there are total 62% employees computer literate out of total 1600 employees, then the no. of female employees who are computer literate ?

  • 1] 690
  • 2] 674
  • 3] 672
  • 4] 960
Solution
3
Discuss

In an election a candidate who gets 84% of the votes is elected by a majority of 476 votes. What is the total number of votes polled?

  • 1]

    672

  • 2]

    700

  • 3]

    749

  • 4]

    848

Solution
4
Discuss

If salary of X is 20% more than salary of Y, then by how much percentage is salary of Y less than X?

  • 1]

    25

  • 2]

    23

  • 3]

    50/3

  • 4]

    65/4

Solution
5
Discuss

The actual area of a rectangle is 60 Cm2, but while measuring its length a student decreases it by 20% and the breadth increases by 25%. The percentage error in area, calculated by the student is :

  • 1] 5%
  • 2] 15%
  • 3] 20%
  • 4] No change
Solution
6
Discuss

In a factory there are three types of machine M1, M2 and M3 which produces 25%, 35% and 40% of the total products respectively. M1, M2 and M3 produces 2%, 4% and 5% defective products, respectively. what is the percentage of non-defective products ?

  • 1] 89%
  • 2] 97.1%
  • 3] 96.1%
  • 4] 86.1%
  • 5] None of these
Solution
7
Discuss

If 25% of a number is subtracted from a second number the second number reduce to its five-sixth What is the ratio of the first number to the second number?

  • 1]

    1:3

  • 2]

    2:3

  • 3]

    3:2

  • 4]

    Data Inadequate

Solution
8
Discuss

The cost of an article was Rs.75. The cost was first increased by 20% and later on it was reduced by 20%. The present cost of the article is:

  • 1] Rs. 72
  • 2] Rs. 60
  • 3] Rs. 75
  • 4] Rs. 76
Solution
9
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
10
Discuss

Vicky's salary is 75% more than Ashu's. Vicky got a raise of 40% on his salary while Ashu got a raise of 25% on his salary. By what percent is Vicky's salary more than Ashu's?

  • 1] 96%
  • 2] 51.1%
  • 3] 90%
  • 4] 52.1%
Solution
# Quiz