Maths Practice Question and Answer
8 Q: If a shopkeeper bought 70 kg of potatoes for Rs 420 and sold the entire purchase at the rate of 6.50 per kg, what was his profit percentage?
1898 05fb39f7206649f682b909ba7
5fb39f7206649f682b909ba7- 1$$ {8{1\over 3}\%}$$true
- 2$$ {5{1\over 3}\%}$$false
- 3$$ {8{2\over 3}\%}$$false
- 4$$ {4{1\over 3}\%}$$false
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Answer : 1. "$$ {8{1\over 3}\%}$$"
Q: 12 men can complete one-third of the work in 8 days. In how many days can 16 men complete that work?
1898 05da054080ba8fe2a19c23b0f
5da054080ba8fe2a19c23b0f- 118true
- 212false
- 324false
- 4Cannot be determinedfalse
- 5None of the abovefalse
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Answer : 1. "18"
Q: In the given figure ABC is an equilateral triangle. Two circles of radius 4 cm and 12 cm are inscribed in the triangle. What is the side (in cm) of an equilateral triangle?
1897 060093e04da57152562aa6f8f
60093e04da57152562aa6f8f- 1$$ {10{\sqrt{3}}}$$false
- 2$$ {14{\sqrt{3}}}$$false
- 324false
- 4$$ {24{\sqrt{3}}}$$true
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Answer : 4. "$$ {24{\sqrt{3}}}$$"
Q: The length of the shadow of a vertical tower on level ground increases by 10 meters when the altitude of the sun changes from 45° to 30°. Then the height of the tower is
1897 05dcbd961e9d33d6509beda5f
5dcbd961e9d33d6509beda5f- 15 ( √3 + 1 ) meterstrue
- 25 ( √3 - 1 ) metersfalse
- 35√3 metersfalse
- 4$$ {5\over √3} meters $$false
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Answer : 1. "5 ( √3 + 1 ) meters "
Q: If a = 2.234, b = 3.121 and c = –5.355, then the value of $$ a^3 + b^3 + c^3 – 3abc$$ is
1897 05ed621c6ebc5ce408e2a90f9
5ed621c6ebc5ce408e2a90f9- 1-1false
- 20true
- 31false
- 42false
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Answer : 2. "0"
Q: If the length of a rectangle is increased by 20% and the breadth is decreased by 10%. What will be the effect on its area? 1897 05d1099c687e3540b926c1bd9
5d1099c687e3540b926c1bd9- 18% increasetrue
- 28% decreasefalse
- 32% increasefalse
- 42% decreasefalse
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Answer : 1. "8% increase"
Q: At what approximate time between 4 and 5 am will the hands of a clock be at right angle ?
1896 05fca52f3cfcd6675cfd49229
5fca52f3cfcd6675cfd49229- 14 : 35 amfalse
- 24 : 39 amfalse
- 34 : 40 amfalse
- 44 : 38 amtrue
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Answer : 4. "4 : 38 am"
Q: ABCD is a trapezium in which AB‖CD. M and N are the mid points of AD and BC respectively. If AB=14 cm and MN=15 cm, find CD.
1895 05f59cd0e57517e34e3444b6f
5f59cd0e57517e34e3444b6f- 116 cmtrue
- 218 cmfalse
- 38 cmfalse
- 410 cmfalse
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