Quiz Discussion

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

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]

  

(X% of Y) + (Y% of X) is equal to:

• 1] X% of Y
• 2] 20% of XY
• 3] 2% of XY
• 4] 2% of 100 XY

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

The price of Maruti car rises by 30 percent while the sales of the car come down by 20%. What is the percentage change in the total revenue?

• 1] - 4%
• 2] - 2%
• 3] + 4%
• 4] + 2%
• 5] None of these

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?

• 1]

  0.20

• 2]

  0.36

• 3]

  0.32

• 4]

  0.25

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

A student appeared in the Mock CAT. The test paper contained 3 sections namely QA, DI and VA. The percentage marks in all VA was equal to the average of percentage marks in all the 3 sections. Coincidentally, if we reverse the digit of the percentage marks of QA we get the percentage marks of DI. The percentage marks in VA scored by student could be:

• 1] 81
• 2] 48
• 3] 66
• 4] 69
• 5] None of these

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

In the recent, climate conference in New York, out of 700 men, 500 women, 800 children present inside the building premises, 20% of the men, 40% of the women and 10% of the children were Indians. Find the percentage of people who were not Indian?

• 1] 77%
• 2] 73%
• 3] 79%
• 4] 83%