Maths Practice Question and Answer
8 Q: There are four numbers in a set. The mean of the three smallest numbers is 9, whereas the mean of the three largest ones is 11. What is the range of the data set?
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5dc11964b0e9c27a7e27c0e0- 13false
- 26true
- 39false
- 45false
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Answer : 2. "6"
Q: 95 percent of 4598 will be___
2237 05fb3a03da0d2c16147e1d355
5fb3a03da0d2c16147e1d355- 14840true
- 24800false
- 34850false
- 44880false
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Answer : 1. "4840"
Q: A sample of 50 litres of glycerine is found to be adulterated to the extent of 20 % . How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5 %?
2237 05ef5b4d0dc58d02c6fe6adea
5ef5b4d0dc58d02c6fe6adea- 1155 litresfalse
- 2149 litresfalse
- 3150 litrestrue
- 4150.4 litresfalse
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Answer : 3. "150 litres "
Q: A rectangular plot has the ratio of 5:3 between length and breath. If the perimeter of the plot is 320 mtr. What’s the area of the plot? 2233 05d10919b87e3540b926c1bba
5d10919b87e3540b926c1bba- 16000 sq.mtr.true
- 212000 sq.mtr.false
- 34500 sq.mtr.false
- 418000 sq.mtr.false
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Answer : 1. "6000 sq.mtr."
Explanation :
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Q: A DVD player was purchased for Rs 4860. At what price should it be sold so that 25% profit is earned?
2232 05e6c991dd71e3c58da724d3d
5e6c991dd71e3c58da724d3d- 1Rs 6225false
- 2Rs 6275false
- 3Rs 6075true
- 4Rs 6025false
- 5None of thesefalse
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Answer : 3. "Rs 6075"
Q: The greatest number that can be subtracted from 10000 so that the remainder may be divisible by 32, 36, 48 and 54 is-
2232 15f5b167cdc518b408a4269a0
5f5b167cdc518b408a4269a0- 19136true
- 29216false
- 39316false
- 49236false
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Answer : 1. "9136"
Q: If for an edition of the book, the cost of paper is Rs. 56250, then find the promotion cost for this edition?
2226 05d70cb15eb96471d6f366102
5d70cb15eb96471d6f366102
- 1Rs. 20,000false
- 2Rs. 22,500true
- 3Rs. 25,500false
- 4Rs. 28,125false
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Answer : 2. "Rs. 22,500"
Explanation :
Let the Promotion cost for this edition be Rs. p.
Then, 25 : 10 = 56250 : p ⇒ p = Rs. 
= Rs. 22500.
Q: A number whose one - fifth part increased by 4 is equal to its one - fourth part diminished by 10 is:
2224 05ee0b7a6ca41b347ed34acd4
5ee0b7a6ca41b347ed34acd4- 1260false
- 2280true
- 3240false
- 4270false
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