Aptitude Practice Question and Answer
8 Q: Vivek is 30% more efficient than Neha. How much time will they, working together, take to complete a job which Vivek alone could have done in 23 days?
1461 06142c18f7bf581140ee3d465
6142c18f7bf581140ee3d465- 113 daystrue
- 255 daysfalse
- 314 daysfalse
- 417 daysfalse
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Answer : 1. "13 days "
Q: The marked price of a Robot is ₹ 18000. By selling it at a discount of 20%, the loss is 4%. Find the cost price of the Robot.
1712 06142c0c856320f13fbcaf36e
6142c0c856320f13fbcaf36e- 1₹ 14,000false
- 2₹ 15,000true
- 3₹ 10,000false
- 4₹ 12,000false
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Answer : 2. "₹ 15,000 "
Q: If $$ {a\over 3}={b\over3}={c\over4}$$ then find the value of $$ {a+b+c\over c}$$.
1056 061162380a9d47920f2a71796
61162380a9d47920f2a71796- 1$$ {5\over 8}$$false
- 2$$ {5\over 2}$$true
- 3$$ {5\over 7}$$false
- 4$$ {9\over 8}$$false
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Answer : 2. "$$ {5\over 2}$$"
Q: A Cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously then after how much time will the cistern get filled?
1212 0613b17f8a0ff2d3b5e8f7657
613b17f8a0ff2d3b5e8f7657- 16.5 hrsfalse
- 27.2 hrstrue
- 32.5 hrsfalse
- 43 hrsfalse
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Answer : 2. "7.2 hrs"
Q: A man went downstream for 28 km in a motor boat and immediately returned. It took the man twice as long to make the return trip. If the speed of the river flow were twice as high, the trip downstream and back would take 672 minutes. Find the speed of the boat in still water and the speed of the river flow. 54312 05b5cc672e4d2b4197774c0c8
5b5cc672e4d2b4197774c0c8- 112 km/hr, 3 km/hrfalse
- 29 km/hr, 3 km/hrtrue
- 38 km/hr, 2 km/hrfalse
- 49 km/hr, 6 km/hrfalse
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Answer : 2. "9 km/hr, 3 km/hr"
Explanation :
Answer: B) 9 km/hr, 3 km/hr Explanation: Let the speed of the boat = p kmph Let the speed of the river flow = q kmph From the given data, 2 x 28p + q = 28p - q => 56p - 56q -28p - 28q = 0 => 28p = 84q => p = 3q. Now, given that if 283q + 2q + 283q - 2q = 67260=> 285q + 28q = 67260=> q = 3 kmph=> x =3q = 9 kmph Hence, the speed of the boat = p kmph = 9 kmph and the speed of the river flow = q kmph = 3 kmph.
Q: If A: B = 4:5 and B:C= 3: 7 . What is the value of C:A?
1176 060990ddbf738a51c29aa235c
60990ddbf738a51c29aa235c- 112 : 35false
- 235 : 12true
- 37 :4false
- 43 :1false
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Answer : 2. "35 : 12"
Q: A train moving at speed of 90 km/hr crosses a pole in 7 seconds. Find the length of the train.
43513 05ee3067ef72c0e153c80603f
5ee3067ef72c0e153c80603f- 1150 mfalse
- 2165 mfalse
- 3175 mtrue
- 4170 mfalse
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Answer : 3. "175 m"
Q: In a factory, the production of cycles rose to 48,400 from 40,000 in 2 years. The rate of growth per annum is?
1237 060057306d517b811ff78e83a
60057306d517b811ff78e83a- 110.5%true
- 29%false
- 38%false
- 410%false
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