Quiz Discussion

Out of the total production of iron from hematite, an ore of Iron, 20% of the ore gets wasted, and out of the remaining iron, only 25% is pure iron. If the pure iron obtained in a year from a mine of hematite was 80,000 kg, then the quantity of hematite mined from that mine in the year is

 

Course Name: SQL -Structured Query Language

  • 1] 5,00,000 kg
  • 2] 4,00,000 kg
  • 3] 4,50,000 kg
  • 4] None of these
Solution
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# Quiz
1
Discuss

A customer asks for the production of x number of goods. The company produces y number of goods daily. Out of which z% are units for sale. The order will be completed in :

  • 1]

      days

  • 2]

    days

  • 3]

    days

  • 4]

    days

  • 5]

    Cannot determined

Solution
2
Discuss

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%
Solution
3
Discuss

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
Solution
4
Discuss

The length, breadth and height of a room in the shape of a cuboid are increased by 10%, 20% and 50% respectively. Find the percentage change in the volume of the cuboid.

  • 1] 77%
  • 2] 75%
  • 3] 88%
  • 4] 98%
  • 5] 99%
Solution
5
Discuss

What percent is 3% of 5% ?

  • 1]

    60%

  • 2]

    15%

  • 3]

    50%

  • 4]

    30%

Solution
6
Discuss

The population of a town increased from 175000 to 262500 in a decade. The average percent increase of population per year is?

  • 1]

    33.33%

  • 2]

    5%

  • 3]

    6%

  • 4]

    8.75%

Solution
7
Discuss

The rate of increase of the price of sugar is observed to be two percent more than the inflation rate expressed in percentage. The price of sugar, on January 1, 1994 is Rs. 20 per kg. The inflation rates of the years 1994 and 1995 are expected to be 8% each. The expected price of sugar on January 1, 1996 would be

  • 1] Rs. 23.60
  • 2] Rs. 24
  • 3] Rs. 24.20
  • 4] Rs. 24.60
  • 5] None of these
Solution
8
Discuss

If the price of the commodity is increased by 50% by what fraction must its consumption be reduced so as to keep the same expenditure on its consumption?

 

  • 1]

    1/4

  • 2]

    1/3

  • 3]

    1/2

  • 4]

    2/3

Solution
9
Discuss

Every day a mango seller sells half his stock, 10% of the stock overnight gets spoiled. If 1983 mangoes rotted over 3 nights then how many did hi start with on the first day ?

  • 1] 25,000
  • 2] 24,000
  • 3] 30,000
  • 4] 32,000
  • 5] None of these
Solution
10
Discuss

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?

  • 1] 250 kg
  • 2] 275 kg
  • 3] 300 kg
  • 4] 266.66 kg
Solution
# Quiz