Quiz Discussion

What percentage of numbers from 1 to 70 have 1 or 9 in the unit's digit?

Course Name: Quantitative Aptitude

• 1]

1

• 2]

14

• 3]

20

• 4]

21

Solution
No Solution Present Yet

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# Quiz
1
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
2
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
3
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
4
Discuss

When any number is divided by 12, then dividend becomes 1/4t h of the other number. By how much percent first number is greater than the second number?

• 1]

150

• 2]

200

• 3]

300

• 4]

None Of These

Solution
5
Discuss

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

Solution
6
Discuss

The length, breadth and height of a room are in ratio 3:2:1. If breadth and height are halved while the length is doubled, then the total area of the four walls of the room will

• 1] remain the same
• 2] decrease by 13.64%
• 3] decrease by 15%
• 4] decrease by 18.75%
• 5] decrease by 30%
Solution
7
Discuss

In a factory there are three types of machine M1, M2 and M3 which produces 25%, 35% and 40% of the total products respectively. M1, M2 and M3 produces 2%, 4% and 5% defective products, respectively. what is the percentage of non-defective products ?

• 1] 89%
• 2] 97.1%
• 3] 96.1%
• 4] 86.1%
• 5] None of these
Solution
8
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
9
Discuss

In an examination 80% candidates passed in English and 85% candidates passed in Mathematics. If 73% candidates passed in both these subjects, then what per cent of candidates failed in both the subjects?

• 1] 8
• 2] 15
• 3] 27
• 4] 35
Solution
10
Discuss

the digit at unit place of a two-digit number is increased by 100% and the digit at ten places of the same number is incresed by 50% the new number thus formed is 19 more then the original number. what is the original number?

• 1]

22

• 2]

63

• 3]

24

• 4]

None Of These

# Quiz