Maths Practice Question and Answer
8 Q: The heights of a cone, cylinder and hemisphere are equal. If their radii are in the ratio 2:3:1, then the ratio of their volumes is:
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5f59cf9bb772fe2f8b2230a0- 12:9:2false
- 24:9:1false
- 34: 27:2true
- 42 : 3: 1false
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Answer : 3. "4: 27:2"
Q: The speed of a train is 4/7 of the speed of a car. The car covers 252 m. distance in 9 seconds. In what time will the train cover a distance of 64m.?
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5eb011b6021b821d91f460b0- 13 sec.false
- 25 sec.false
- 34 sec.true
- 47 sec.false
- 5None of thesefalse
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Answer : 3. "4 sec. "
Q: 13x -14= 9x+10 what is the value of x ?
1321 05f7597204637db73283e0c29
5f7597204637db73283e0c29- 16true
- 22false
- 31false
- 43false
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Answer : 1. "6"
Q: Rs. 1,080 invested for 3 months gave an interest of Rs. 27. The simple rate of interest per annum was :
1321 0608292a360a06a7ffdaaf57c
608292a360a06a7ffdaaf57c- 12.5%false
- 25%false
- 37.5%false
- 410%true
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Answer : 4. "10%"
Q:Directions: Study the following pie chart carefully and answer the questions given beside.
The following pie chart gives the information about breakup of six different categories of workers in a company.
The number of Category B workers is what percentage more than that of category D workers?
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601a54e308ff1450d90c7983The following pie chart gives the information about breakup of six different categories of workers in a company.
- 1140%false
- 2120%false
- 3100%false
- 4125%true
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Answer : 4. "125%"
Q: Average age of x students in a group is 20. When 4 new students are admitted with a age of 7.5 years each, then the average is decreased by 5. What is the value of x?
1321 064ddf095d4a4292bfff85c34
64ddf095d4a4292bfff85c34- 15false
- 23false
- 37false
- 46true
- 54false
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Answer : 4. "6"
Q: One acute angle of a right-angled triangle is double the other. If the length of its hypotenuse is 10 cm, then its area is
1321 0645ce002cdae930acb6ae854
645ce002cdae930acb6ae854- 1$${25\over 2}\ cm^2$$true
- 2$$25\ cm^2$$false
- 3$$25 \sqrt { 3}\ cm^2$$false
- 4$${75\over 2} \ cm^2$$false
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Answer : 1. "$${25\over 2}\ cm^2$$"
Q: In ∆ABC, AC = BC and ∠BAC = 40°. If BC is extended to D such that BC = CD, find out ∠ADC = ?
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5e8b02f4cbf02e5d9872812b- 145^0false
- 260^0false
- 340^0false
- 450^0true
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