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

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
2
Discuss

the digit at unit place of a two-digit number is increased by 100% and the digit at ten places of the same number is incresed by 50% the new number thus formed is 19 more then the original number. what is the original number?

  • 1]

    22

  • 2]

    63

  • 3]

    24

  • 4]

    None Of These

Solution
3
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
4
Discuss

One bacterium splits into eight bacteria of the next generation. But due to environment, only 50% of one generation can produced the next generation. If the seventh generation number is 4096 million, what is the number in first generation?

  • 1] 1 million
  • 2] 2 million
  • 3] 4 million
  • 4] 8 million
  • 5] None of these
Solution
5
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
6
Discuss

A company has 12 machines of equal efficiency in its factory. The annual manufacturing expenses are Rs. 24,000 and the establishment charges are Rs. 10,000. The annual output of the company is Rs. 48,000. The annual output and manufacturing costs are directly proportional to the no. of machines while the share holders get the 10% profit, which is directly proportional to the annual output of the company. If 8.33% of machines remained close throughout the year. Then the percentage decrease in the amount of share holders is :

  • 1] 14.28%
  • 2] 11.11%
  • 3] 16.66%
  • 4] 8.33%
  • 5] None of these
Solution
7
Discuss

The population of village is 1,00,000. The rate of increase is 10% per annum. Find the population at the start of the third year?

  • 1] 1,33,100
  • 2] 1,21,000
  • 3] 1,18,800
  • 4] 1,20,000
  • 5] None of these
Solution
8
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
9
Discuss

The ratio 5 : 4 expressed as a percent equals :

  • 1]

    12.5 %

  • 2]

    40 %

  • 3]

    80 %

  • 4]

    125 %

Solution

5 : 4 = 5/4 = ( (5/4) x 100 )% = 125%.

10
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
# Quiz