Maths Practice Question and Answer
8 Q: A boat moves 25km upstream and 39km downstream in 8 hours. It travels 35km upstream and 52km downstream in 11 hours. What is the speed of the stream if it travels at a uniform speed?
1434 0647f302fa33e0f47b76f02dd
647f302fa33e0f47b76f02dd- 15 km/hfalse
- 24 km/htrue
- 36 km/hfalse
- 43 km/hfalse
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Answer : 2. "4 km/h "
Q: What is the reflection of the point (-3, 1) in the line x = -2?
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5f02e6c17a5a806340b288b3- 1(1, 1)false
- 2(-3 , 5)false
- 3(-1, 1)true
- 4( -3 , -5)false
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Answer : 3. "(-1, 1) "
Q: The ratio of present ages of Ratna and Shantanu is 5:4. After 19 years, the ratio of their ages will be 10:9. What is Ratna's present age?
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609cd976e941dd6183d5b41f- 119 Yeartrue
- 215 Yearfalse
- 39 Yearfalse
- 472 Yearfalse
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Answer : 1. "19 Year"
Q: The LCM of two positive integers is twice the larger number and the HCF of the two numbers is 3. The smaller number is:
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642d2f727ac9a186e4ea4a13- 16true
- 210false
- 39false
- 48false
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Answer : 1. "6 "
Q: Find the area of the largest triangle made in a semicircle of r cm radius?
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5f4df2f882369c1d6113bee5- 1$$ {2r \ cm^{2}}$$false
- 2$$ {r^{2} \ cm^{2}}$$true
- 3$$ {2\ cm^{2}}$$false
- 4$$ {1\over 2}{r^{2}}\ {cm^{2}}$$false
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Answer : 2. "$$ {r^{2} \ cm^{2}}$$"
Q: Find the forth proportional to $${ x^{2}b^{2}c^{3}}$$, $${ x^{3}bc^{4}}$$ and $${ x^{4}b^{2}c^{2}}$$.
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5f4e14eb5e74bc4ee554c402- 1$${ x^{5}bc^{3}}$$true
- 2$${ x^{4}bc^{2}}$$false
- 3$${ x^{5}b^{3}c^{3}}$$false
- 4$${ x^{5}b^{2}c^{5}}$$false
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Answer : 1. "$${ x^{5}bc^{3}}$$"
Q: If one angle is half of its complementary angle, find that angle.
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5f758e7af66ef56de84d6b3d- 130°false
- 260°true
- 3180°false
- 4120°false
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Answer : 2. "60°"
Q: 13x -14= 9x+10 what is the value of x ?
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5f7597204637db73283e0c29- 16true
- 22false
- 31false
- 43false
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