Maths Practice Question and Answer
8 Q: 5 men and 5 women earn Rs.600 in 3 days. 10 men and 20 women earn Rs. 3500 in 5 days. In how many days can 6 men and 4 women earn Rs. 1060?
3708 15f4f5ef082369c1d61194be9
5f4f5ef082369c1d61194be9- 15 daystrue
- 210 daysfalse
- 36 daysfalse
- 412 daysfalse
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Answer : 1. " 5 days"
Explanation :
3 (5 M+5 W)=600
5( 10 M+ 20 W)=3500
Solving we can get:
M=18
W=26
So we can find
Days =1060/6M+4W=5 days
Q: A completes $$ {7\over 10}$$ of work in 15 days, then he completes the remaining work with the help of B in 4 days. The time required for A and B together to complete the entire work is
1586 15f4f5e5e82369c1d61194ade
5f4f5e5e82369c1d61194ade- 1$$ {10} {2\over 3}\ days$$false
- 2$$ {12} {2\over 3}\ days $$false
- 3$$ {13} {1\over 3}\ days $$true
- 4$$ {8} {1\over 4}\ days $$false
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Answer : 3. "$$ {13} {1\over 3}\ days $$"
Q: The average of 5 consecutive integers starting with ‘M’ is ‘K’. What is the average of 6 consecutive integers stating with (m+1)?
1569 05f4e19ed5e74bc4ee554e846
5f4e19ed5e74bc4ee554e846- 1$$ {2K-3}\over 2$$false
- 2$$ {2K+3}\over 2$$true
- 3$$ {2K-5}\over 2$$false
- 4$$ {2K+5}\over 2$$false
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Answer : 2. "$$ {2K+3}\over 2$$"
Q: A sum of money placed at compound interest triples itself in 9 year. In how many years will if amount to 243 times itself?
1736 05f4e171f7e85226ee746d291
5f4e171f7e85226ee746d291- 127 yearsfalse
- 236 yearsfalse
- 345 yearstrue
- 454 yearsfalse
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Answer : 3. "45 years"
Q: Find the forth proportional to $${ x^{2}b^{2}c^{3}}$$, $${ x^{3}bc^{4}}$$ and $${ x^{4}b^{2}c^{2}}$$.
1282 05f4e14eb5e74bc4ee554c402
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: The lengths of the lengths placed on the sides of a point inside an equilateral triangle are 6 cm, 8 cm and 10 cm. What is the area of the triangle?
1157 05f4df72482369c1d6113e0f2
5f4df72482369c1d6113e0f2- 1$$ {48\ cm^{2}}$$false
- 2$$ {16\sqrt{3}}\ cm^{2}$$false
- 3$$ {192\sqrt{3}}\ cm^{2}$$true
- 4$$ {192 \ cm^{2}}$$false
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Answer : 3. "$$ {192\sqrt{3}}\ cm^{2}$$ "
Q: Find the area of the largest triangle made in a semicircle of r cm radius?
1264 05f4df2f882369c1d6113bee5
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 area of the circle formed in an equilateral triangle of side 42 cm. Using (π=22/7)
1311 05f4df35082369c1d6113c1ae
5f4df35082369c1d6113c1ae- 1$$ 231 \ cm^{2}$$false
- 2$$ 462 \ cm^{2}$$true
- 3$$ {22 \sqrt{3}}\ cm^{2}$$false
- 4$$ 924 \ cm^{2}$$false
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