Aptitude Practice Question and Answer
8 Q: One boy from a group of eight boys left and a new boy with a weight of 56 kg joined the group, which resulted in an average weight of 2.5 kg has increased, what is the weight of the new boy?
3733 05f80134f0a69ab3becc7b304
5f80134f0a69ab3becc7b304- 138.5 Kgfalse
- 238 Kgfalse
- 336.5 Kgfalse
- 436 Kgtrue
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Answer : 4. "36 Kg"
Q: The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years the average of the family at the birth of the youngest member was -
3725 05f4cfe8caa6f1f4511a8fd9e
5f4cfe8caa6f1f4511a8fd9e- 117.5 yearsfalse
- 218 yearstrue
- 315 yearsfalse
- 417 yearsfalse
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Answer : 2. "18 years"
Q: Mr. Girdhar spends 50 % of his monthly income on household items and out of the remaining he spends 50% on transport 25% on entertainment, 10% on sports and remaining amount of Rs.900 is saved. What is Mr.Giridhar's monthly income?
3716 05e4d0a27701cfd31ff63365e
5e4d0a27701cfd31ff63365e- 1Rs. 6,000false
- 2Rs. 12,000true
- 3Rs. 9,000false
- 4Cannot be determinedfalse
- 5None of thesefalse
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Answer : 2. "Rs. 12,000 "
Q: What is the value of positive square root of $$\ 14+ 6\sqrt{5}\ $$?
3703 15d71f7212442194806647302
5d71f7212442194806647302- 1$$\ 3+ \sqrt { 5} \ $$true
- 2$$\ 3- \sqrt { 5} \ $$false
- 3$$\ 5+ \sqrt { 3} \ $$false
- 4$$\ 5- \sqrt { 3} \ $$false
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Answer : 1. "$$\ 3+ \sqrt { 5} \ $$"
Q: A used car dealer sells a car for Rs 7.6 lakhs and makes some loss. If he had sold if for Rs.9.2 lakhs his profit would been thrice of his loss. What was the cost price of the car (in Rs. Lakhs)?
3698 05dca4f4a582669277c2973cc
5dca4f4a582669277c2973cc- 18.5false
- 28.75false
- 38.25false
- 48true
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Answer : 4. "8"
Q: Sudhir and Shyam can do a work in 12 days, while Shyam alone can complete it in 30 days. In how many days can Sudhir complete that work alone?
3696 05fa694644e71ba46b01f0d44
5fa694644e71ba46b01f0d44- 120 daystrue
- 218 daysfalse
- 328 daysfalse
- 430 daysfalse
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Answer : 1. "20 days "
Q: Ratio of the principal and the amount after 5 year is 10:12. Then the rate of interest per annum is
3692 05f0d4876cec10557a8deaea7
5f0d4876cec10557a8deaea7- 18%false
- 220%true
- 312%false
- 416%false
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Answer : 2. "20% "
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)? 3676 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.