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

A shepherd had n goats in the year 2000. In 2001 the no. of goats increased by 40%. In 2002 the no. of goats declined to 70%. In 2003 the no. of goats grew up 30%. In 2004, he sold 10% goats and then he had only 34,398 goats. The percentage increase of the no. of goats in this duration was :

  • 1] 16.66%
  • 2] 14.66%
  • 3] 11.33%
  • 4] 20%
Solution
2
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
3
Discuss

An alloy contains the copper and aluminum in the ratio of 7 : 4 While making the weapons from this alloy, 12% of the alloy got destroyed. If there is 12 kg of aluminum in the weapon, then weight of the alloy required is :

  • 1] 14.4 kg
  • 2] 37.5 kg
  • 3] 40 kg
  • 4] 48 kg
Solution
4
Discuss

A sales executive gets 20% bonus of the total sales value and 10% commission besides the bonus on the net profit after charging such commission. If the total sales value be Rs. 10 lakh per annum and the total profit of the company be Rs. 1.32 lakh, then his total earning per annum will be, given that he is not entitled to receive any fixed salary from the company :

  • 1] 2.3 lakh
  • 2] 2.32 lakh
  • 3] 2.12 lakh
  • 4] 3.2 lakh
  • 5] None of these
Solution
5
Discuss

Last year, the population of a town was x and if it increases at the same rate, next year it will be y. the present population of the town is

  • 1]

  • 2]

  • 3]

     

     

  • 4]

Solution
6
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%.

7
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
8
Discuss

Population of a town increase 2.5% annually but is decreased by 0.5% every year due to migration. What will be the percentage increase in 2 years?

  • 1] 5%
  • 2] 4.04%
  • 3] 4%
  • 4] 3.96%
Solution
9
Discuss

25% of 25% Is Equal To

  • 1]

    0.0625

  • 2]

    0.0210

  • 3]

    0.03145

  • 4]

    0.3210

Solution
10
Discuss

The cost of packaging of the mangoes is 40% the cost of fresh mangoes themselves. The cost of mangoes increased by 30% but the cost of packaging decreased by 50%, then the percentage change of the cost of packed mangoes, if the cost of packed mangoes is equal to the sum of the cost of fresh mangoes and cost of packaging :

  • 1] 14.17%
  • 2] 7.14%
  • 3] 8.87%
  • 4] 6.66%
Solution
# Quiz