Maths Practice Question and Answer
8 Q: If $$ {x\over y}={y\over w}$$ then what is the value of (xy+zw).
940 060112bb5e8a52d24905e8e3c
60112bb5e8a52d24905e8e3c- 1$$ {(x^{2}+z^{2})(y^{2}+w^{2})}$$true
- 2$${(x^{2}{y^{2}+z^{2}w^{2}})}$$false
- 3$${(x^{2}{w^{2}+y^{2}z^{2}})}$$false
- 4$$ {(x^{2}+w^{2})(y^{2}+z^{2})}$$false
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Answer : 1. "$$ {(x^{2}+z^{2})(y^{2}+w^{2})}$$"
Q: If each side of a cube is increased by 10%. Then find the percent change in the volume of the cube.
940 160a2190bde4c2e1331db22e7
60a2190bde4c2e1331db22e7- 121%false
- 230%false
- 333.1%true
- 435%false
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Answer : 3. "33.1%"
Q: When x = 1, then value of |2x – 1| + |x – 3| will be -
940 060bdfc2ed9924b52b3c6c363
60bdfc2ed9924b52b3c6c363- 13true
- 2-3false
- 32false
- 4-2false
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Answer : 1. "3"
Q: On dividing 256a2b2c2 by 64a2, we get
939 062ce947e31b6d2015533b673
62ce947e31b6d2015533b673- 14false
- 24b2c2true
- 32c2false
- 42b2false
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Answer : 2. "4b2c2"
Q: If $${\sqrt{7-2}\over\sqrt{7+2}}=a\sqrt{7}+b$$, then the value of a is :
939 05f1e99e21b4d8003eeb16c16
5f1e99e21b4d8003eeb16c16- 1$${4\over3}$$false
- 2$${-4√7\over3}$$false
- 3$${11\over2}$$false
- 4$$-{4\over3}$$true
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Answer : 4. " $$-{4\over3}$$"
Q: A man gets a discount of 30% and then 20% on his food bill of Rs.1500. What is the total discount he got in rupees?
939 06321ac954eed097ecb5206eb
6321ac954eed097ecb5206eb- 1700false
- 2360false
- 3660true
- 4500false
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Answer : 3. "660"
Q: The cost of printing a book increased from Rs. 96 to Rs. 120 from the year 2013 to 2018, such that the total money spent on printing books by a printing press increased in the ratio 5 ∶ 6. If the printing press printed 200 books in the year 2013, how many books did they print in the year 2018?
939 064f1e89618913c5bfc72e877
64f1e89618913c5bfc72e877- 1176false
- 2192true
- 3216false
- 4252false
- 5223false
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Answer : 2. " 192"
Q:Direction: The following table shows the number of students of 7 colleges A, B, C, D, E, F, G participating in extra-curricular activities :
The difference of the number of students in activity IV and the number of students in activity III is –
939 0601147b12a5c813e1573da6c
601147b12a5c813e1573da6c- 1111false
- 2153true
- 3197false
- 4217false
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