Maths Practice Question and Answer
8Q: The average of three numbers is 40. First of them is two times of the seconds and the second is three time of the third. So, what is the difference between the largest and smallest number? 1779 05d19dded7619fe30b9d345a3
5d19dded7619fe30b9d345a3- 130false
- 236false
- 346false
- 460true
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Answer : 4. "60"
Explanation :
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Q: The smallest positive integer n for which 864 x n is a perfect cube, is:
1779 05ef02751f18fb82abc76c602
5ef02751f18fb82abc76c602- 13false
- 24false
- 31false
- 42true
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Answer : 4. "2 "
Q: Average salary of Santosh and Renu is Rs 3600. If salary of Santosh and Renu is increased by 50% and 30% respectively then their total salary is increased by 35% then find salary of Renu is what percent more or less than salary of Santosh before increment?
1779 161c343db743b28278b02b38b
61c343db743b28278b02b38b- 1250%false
- 2$$ {233{1\over3}}\%$$false
- 3$$ {166{2\over3}}\%$$false
- 4225%false
- 5200%true
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Answer : 5. "200%"
Q: The difference between the simple interest between the simple interest received from two different sources on ₹ 1500 for 3 years is ₹ 13.50. The difference between their rate of interest is -
1778 05db034e8eb701b4db6e86ca7
5db034e8eb701b4db6e86ca7- 10.1 %false
- 20.2 %false
- 30.3 %true
- 40.4 %false
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Answer : 3. "0.3 % "
Q: Amount invested by C is Rs 4000 more than that of A and after 9 months, A and C both withdrew their whole amount and B joined the business with Rs. 24,000. If at the end of year, ratio of profit share of A to that of C is 2: 3 then, find profit share by B out of total profit of Rs 14000?
1778 05e8ff8e7ce0a3938e2c752b1
5e8ff8e7ce0a3938e2c752b1- 1Rs. 3600false
- 2Rs. 4000true
- 3Rs. 4400false
- 4Rs. 3200false
- 5Rs. 4200false
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Answer : 2. "Rs. 4000 "
Q: A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in 1778 05cf0f0dec97a225730e3b250
5cf0f0dec97a225730e3b250- 1$${1\over 4}days$$false
- 2$${7\over 24}days$$false
- 3$$3{3\over 7}days$$true
- 4$$4 \ days$$false
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Answer : 3. " $$3{3\over 7}days$$"
Q: Vipin swims in a 72 meter long pond. He travels 144 meters in one minute by swimming from one end to the other and coming back the same way, find his average speed.
1778 05f96bd8eeed3d00d4bc4c2ea
5f96bd8eeed3d00d4bc4c2ea- 1$$ {2.4 m/sec^{2}}$$true
- 2$$ {2.1 m/sec^{2}}$$false
- 3$$ {3.4 m/sec^{2}}$$false
- 4$$ {2.0 m/sec^{2}}$$false
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Answer : 1. "$$ {2.4 m/sec^{2}}$$"
Q: The H.C.F. of two numbers is 8. Which one of the following can never be their L.C.M?
1778 05ee0ca90ca41b347ed3507fb
5ee0ca90ca41b347ed3507fb- 124false
- 248false
- 356false
- 460true
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