Quiz Discussion

In a laboratory experiment, a sample of air which is a mixture of oxygen and water vapour is taken. Water vapour, contains hydrogen and oxygen gases. If air contains a total of 70% oxygen (including that contained in the water vapour) by weight while water vapour contains 16.66% of oxygen by weight, how many kilograms of water vapour is present in 1 kilogram of air?

Course Name: Quantitative Aptitude

  • 1]

    0.20

  • 2]

    0.36

  • 3]

    0.32

  • 4]

    0.25

Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

express 62.5% as a fraction

  • 1]

    1/2

  • 2]

    5/8

  • 3]

    3/8

  • 4]

    7/8

Solution
3
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
4
Discuss

A shopkeeper first raises the price of Jewellery by x% then he decreases the new price by x%. After such up down cycle, the price of a Jewellery decreased by Rs. 21025. After a second up down cycle the Jewellery was sold for Rs. 484416. What was the original price of the jewellery.

  • 1] Rs. 5,26,000
  • 2] Rs. 6,00,625
  • 3] Rs. 5,25,625
  • 4] Rs. 5,00,000
  • 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

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
7
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
8
Discuss

Ram spends 30% of his salary on house rent, 30% of the rest he spends on his children's education and 24% of the total salary he spends on clothes. After his expenditure, he is left with Rs. 2500. What is Ram's salary?

  • 1] Rs. 11,494.25
  • 2] Rs. 20,000
  • 3] Rs. 10,000
  • 4] Rs. 15,000
Solution
9
Discuss

P is 6 times greater than Q then by what per cent is Q smaller than P?

  • 1] 84%
  • 2] 85.5%
  • 3] 80%
  • 4] 83.33%
Solution
10
Discuss

30% of a number when subtracted from 91, gives the number itself. Find the number.

  • 1] 60
  • 2] 65
  • 3] 75
  • 4] 70
  • 5] None of these
Solution
# Quiz