Maths Practice Question and Answer
8Q: Ten years back A’s age was half of B’s age. If their present age ratio 3:4. What is the sum of their present age? 1795 05d0ca32e23ee2e06e9eae230
5d0ca32e23ee2e06e9eae230- 145false
- 225false
- 335true
- 440false
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Answer : 3. "35"
Q: A motorboat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 and half an hour. If the speed of the water is 1.5 km / h, then the speed of the boat in still water is:
1795 05f23dd8b1436461f6a2f3713
5f23dd8b1436461f6a2f3713- 119.5 km/htrue
- 219 km/hfalse
- 317 km/hfalse
- 417.5 km/hfalse
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Answer : 1. "19.5 km/h"
Q: Pipes A and B can fill a tank in 43.2 minutes and 108 minutes, respectively. Pipe C can empty it at 3 litres/minute. When all the three pipes are opened together, they fill the tank in 54 minutes. The capacity (in litres) of the tank is:
1795 064be670e23047f4c71dc9c2d
64be670e23047f4c71dc9c2d- 1200false
- 2160false
- 3180false
- 4216true
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Answer : 4. "216"
Q: Simplify : $$ {9\over 13} ÷{18\over 26}÷{90\over 52}$$
1794 0607d2ba5a4edf93f6177a95c
607d2ba5a4edf93f6177a95c- 1$$ {45\over 26}$$false
- 2$$ {13\over 45}$$false
- 3$$ {26\over 45}$$true
- 4$$ {45\over 13}$$false
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Answer : 3. "$$ {26\over 45}$$"
Q: In circular measure, the value of the angle 11015’ is :
1794 05d984b291ece4b483a8c48a9
5d984b291ece4b483a8c48a9- 1$${π^0}\over 16$$true
- 2$${π^0}\over 8$$false
- 3$${π^0}\over 4$$false
- 4$${π^0}\over 12$$false
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Answer : 1. "$${π^0}\over 16$$"
Q: Some students (only boys and girls) from different schools1 appeared for an Olympiad exam. 20% of the boys and 15% of the girls failed the exam. The number of boys who passed the exam was 70 more than that of the girls who passed the exam'. A total of 90 students failed. Find the number of students that appeared for the exam.
1794 0646dd69bc899b466f467fcc0
646dd69bc899b466f467fcc0- 1500true
- 2350false
- 3400false
- 4420false
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Answer : 1. "500"
Q: The speed of two trains are in the ratio of 3:4. They are going in opposite directions along parallel tracks. If each takes 3 seconds to cross a telegraph post, find the time taken by the trains to cross each other completely?
1794 05f59f57457517e34e345892f
5f59f57457517e34e345892f- 11 secondfalse
- 23 secondtrue
- 35 secondfalse
- 47 secondfalse
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Answer : 2. "3 second"
Q: The average of x numbers is 48. If of the numbers are increased by 51 each and remaining are decreased by 71 each, then what is the new average?
1793 0605868aed2ebd403fd28aae5
605868aed2ebd403fd28aae5- 151true
- 249false
- 350false
- 446false
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