Maths Practice Question and Answer
8 Q: A man spends 75 % of his income. His income increased by 20 % and he increased his expenditure by 15 %. His savings will then be increased by:
1474 05dd62d81c2282c484e4b4bf1
5dd62d81c2282c484e4b4bf1- 133%false
- 2$$33{1\over 3}\% $$false
- 335%true
- 440%false
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Answer : 3. "35% "
Q: The average of 5 consecutive odd numbers A, B, C, D and E is 45. What is the product of B and D? 1474 05d19d71f1388cd24f0860f05
5d19d71f1388cd24f0860f05- 12107false
- 22205false
- 31935false
- 42021true
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Answer : 4. "2021"
Explanation :
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Q: Find the square root of $$ {k+l+m+n+2\sqrt{ml+mk}+2\sqrt{mn}+2\sqrt{kn+ln}}$$
1474 0600e935d377d750b4eb4a201
600e935d377d750b4eb4a201- 1$${\sqrt{k+l}}+\sqrt{m+n}$$true
- 2$${\sqrt{k+n}}+\sqrt{m-n}$$false
- 3$${\sqrt{k+l}}+\sqrt{m}+\sqrt{n}$$false
- 4$${\sqrt{k+m}}+\sqrt{l+n}$$false
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Answer : 1. "$${\sqrt{k+l}}+\sqrt{m+n}$$"
Q: A person travels 600 km by train at 80 km/hr 800 km by ship at 400 km/ hr and 100 km by car at 50 km/hr. What is the average speed for the entire distance?
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5dd625497780ee35515ac19d- 1$$ 65{5\over 123} km.hr$$false
- 2$$ 130{10\over 23} km.hr$$true
- 3$$ 60{5\over 123} km.hr$$false
- 462 km.hrfalse
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Answer : 2. "$$ 130{10\over 23} km.hr$$"
Q: The compound interest on Rs. 6250 at 12% per annum for 1 year, compounded half-yearly is
1473 05ee9ac32bc81cb2528ec18b3
5ee9ac32bc81cb2528ec18b3- 1772.50true
- 2772false
- 3672.50false
- 4672false
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Answer : 1. "772.50"
Q: A,B, C are three points such that AB = 9 cm, BC = 11 cm and AC = 20 cm. The number of circles passing through points A,B,C is:
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6492d70e187426e04961e4b4- 12false
- 20true
- 31false
- 43false
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Answer : 2. "0"
Q: If $$ {\sqrt{1+{473\over{256}}}=1+{x\over 16}}$$ then what does x equal to ?
1472 0606421da8aaa67545d7d4234
606421da8aaa67545d7d4234- 111true
- 212false
- 313false
- 414false
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Answer : 1. "11"
Q: In a factory, 60 workers can stitch 120 m of clothes in 7 days, what length of clothes can be stiched by 70 workers in 5 days?
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606fdc1a0d3bb27a206a5caf- 1100 mtrue
- 290 mfalse
- 385 mfalse
- 4110 mfalse
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