Maths Practice Question and Answer
8Q: $${2\over 3}$$ is what percent of $${1\over 3}=? $$ 1355 05cda913e40678f4146def8f9
5cda913e40678f4146def8f9- 150%false
- 2$$33{1\over 3}\% $$false
- 350%false
- 4200%true
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Answer : 4. " 200%"
Q: Akhil after travelling 50 km meets Raju who suggests him to go slower. He then proceeds at ¾ of his former speed and arrives at his destination 35 minutes late. Had the meeting occurred 24 km further Akhil would have reached its destination 25 minutes late. What is the initial speed of Akhil? 3163 05b5cc601e4d2b4197774b476
5b5cc601e4d2b4197774b476- 148 kmphtrue
- 236 kmphfalse
- 324 kmphfalse
- 420 kmphfalse
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Answer : 1. "48 kmph"
Explanation :
Answer: A) 48 kmph Explanation: Let the initial speed of Akhil be '4p' kmph Then speed after decrease in speed = '3p' kmph We know that, Change in speed == Change in time According to the given data, 243p - 244p = 35 - 2560=> p = 12 Hence, the initial speed of Akhil = 4p = 4 x 12 = 48 kmph.
Q: Mr. Shankar spends 25% of his monthly salary on household expenditure, 20% of the remaining on children’s education, and the remaining is equally invested in three different schemes. If the amount invested in each scheme is Rs.5600, what is the monthly salary of Shankar ? 3089 05b5cc74fe4d2b4197774fb30
5b5cc74fe4d2b4197774fb30- 1Rs. 34000false
- 2Rs. 31245false
- 3Rs. 24315false
- 4Rs. 28000true
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Answer : 4. "Rs. 28000"
Explanation :
Answer: D) Rs. 28000 Explanation: Let the monthly salary of Shankar be = Rs.xAmount invested on expenditure = 25% = x/4;Remaning amount = 3x/4;Amount invested on children education = 20% i.e = 3x/20;Remaining amount = 3x/4 - 3x/20 = 3x/5;Remaining amount invested in three different schemes i.e is 1/3(3x/5) => x/5 = 5600Therefore x = 28000Hence, Monthly salary of Shankar is Rs. 28,000.
Q: The difference between 4632 and 20000 is what number 2850 05b5cc5ffe4d2b4197774b42c
5b5cc5ffe4d2b4197774b42c- 115368true
- 212652false
- 314562false
- 414965false
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Answer : 1. "15368"
Explanation :
Answer: A) 15368 Explanation: The difference between 4632 and 20000 is given by subtracting smaler number from the bigger number. Here the bigger number is 20000 Smaller number is 4632 Now, subtracting 4632 from 20000 20000 - 4632 = 15368 and the resut is an even number. Hence, The difference between 4632 and 20000 is 15368 and is an even number.
Q: How many window coverings are necessary to span 50 windows, if each window covering is 15 windows long? 2919 05b5cc601e4d2b4197774b453
5b5cc601e4d2b4197774b453- 14true
- 215false
- 33false
- 450false
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Answer : 1. "4"
Explanation :
Answer: A) 4 Explanation: Given that, Number of windows = 50 Each window covering covers 15 windows => 50 windows requires 50/15 window coverings = 50/15 = 3.333 Hence, more than 3 window coverings are required. In the options 4 is more than 3. Hence, 4 window coverings are required to cover 50 windows of each covering covers 15 windows.
Q: A 200 m long train passes a motorcycler, running in the same direction at 12 km/hr, in 15 second and a jeep travelling in the same direction in 20 s. At what speed is the car travelling (length of both the motorcycler and jeep is negligible)? 2498 05b5cc607e4d2b4197774b502
5b5cc607e4d2b4197774b502- 136 kmphfalse
- 232 kmphfalse
- 329 kmphfalse
- 424 kmphtrue
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Answer : 4. "24 kmph"
Explanation :
Answer: D) 24 kmph Explanation: Let the speed of the train be 'S' kmph From the given data, Distance = Length of train = D = 200 mts = 200 x 18/5 kms Time = 10 sec given speed of the motorcycler = 12 kmph Relative speed as they are moving in the same direction = (S - 12) kmph (S- 12) = 200 x 18515S - 12 = 48S = 60 kmph Hence, the speed of the train = S = 60 kmph Now, Let the speed of the jeep be 'x' kmph 60 - x = 200 x 1852060 - x = 36x = 60 - 36x = 24 kmph Therefore, the speed of the jeep = x = 24 kmph.
Q: The twice of sum of the ages of a father and his son is 8 times the age of the son. If the average age of the father and the son is 30 years, what is father's age ? 1320 05b5cc6c9e4d2b4197774df83
5b5cc6c9e4d2b4197774df83- 142 yrsfalse
- 245 yrstrue
- 336 yrsfalse
- 438 yrsfalse
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Answer : 2. "45 yrs"
Explanation :
Answer: B) 45 yrs Explanation: Let father's age be x year and son's age be y year. According to question, 2(x+y) = 8y _______(I) and (x+y)/2 = 30 => x+y = 60 years__________(II) From equation (I) and (II) 8 y = 120 y = 15 years, Hence x = 45 years.
Q: 0.01 is what per cent of 0.1 ? 3015 25cda8e04daf80a0820f09399
5cda8e04daf80a0820f09399- 110%true
- 2$${1\over 10}\% $$false
- 3100%false
- 4$${1\over 100}\% $$false
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Answer : 1. " 10%"
Explanation :
