Quiz Discussion

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 :

Course Name: Quantitative Aptitude

  • 1] 5%
  • 2] 15%
  • 3] 20%
  • 4] No change
Solution
No Solution Present Yet

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# Quiz
1
Discuss

The square of a positive number is 2000% greater than the number itself, then the square of that number is :

  • 1] 1762
  • 2] 1635
  • 3] 441
  • 4] 139
Solution
2
Discuss

An inspector rejects 0.08% of the meters as defective. How many will he examine to reject 2?

  • 1]

    2000

  • 2]

    2200

  • 3]

    2500

  • 4]

    2800

Solution
3
Discuss

The marked price of an article is Rs 2400. It is sold at two successive discounts of 10% and 15%. What is the selling price (in Rs) of the article?

  • 1]

    1836

  • 2]

    1924

  • 3]

    1848

  • 4]

    1976

Solution
4
Discuss

The cost of a car is 400% greater than the cost of a bike. If there is an increase in the cost of the car is 15% and that of bike 20%. Then the total increase in the cost of the 5 cars and 10 bikes is:

  • 1]

    17.5%

  • 2]

    %

  • 3]

    18.5%

  • 4]

    18.25%

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 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
7
Discuss

Half percent, written as a decimal, is

  • 1] 0.2
  • 2] 0.02
  • 3] 0.005
  • 4] 0.05
Solution
8
Discuss

The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg of rice previously?

  • 1] 5 kg
  • 2] 15 kg
  • 3] 25 kg
  • 4] 30 kg
Solution
9
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
10
Discuss

Connie has a number of gold bars, all of different weights. She gives the 24 lightest bars, which weigh 45% of the total weight, to Brennan. She gives the 13 heaviest bars, which weigh 26% of the total weight, to Maya. She gives the rest of the bars to Blair. How many bars did Blair receive?

  • 1] 14
  • 2] 15
  • 3] 16
  • 4] 17
  • 5] 18
Solution
# Quiz