Quantitative Aptitude Practice Question and Answer
8Q: If the cost price of a certain object doubles, then the loss gets tripled of what it was initially. The initial loss % was ? 11241 05b5cc77fe4d2b41977750174
5b5cc77fe4d2b41977750174- 10 %false
- 225 %false
- 375 %false
- 450 %true
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Answer : 4. "50 %"
Explanation :
Answer: D) 50 % Explanation: Let the cost price be x and selling price be y.Loss = x – y When the cost price doubles, the loss gets tripled.So it becomes like this, 2x – y = 3(x-y) => x = 2y Loss % = (loss/ C.P) x 100 = [(2y-y)/2y] x 100= 50 %
Q: A candidate got 35% of the votes polled and he lost to his rival by 2250 votes. How many votes were cast ? 11229 05b5cc6dae4d2b4197774e89e
5b5cc6dae4d2b4197774e89e- 17500true
- 26200false
- 35600false
- 44700false
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Answer : 1. "7500"
Explanation :
Answer: A) 7500 Explanation: Let the candidates be A & B35%-----------A65%-----------B Difference of votes (65-35)% = 30% => 30% ------- 2250Then for 100% -------- ? => 7500
Q: An air conditioner can coo the hall in 40 miutes while another takes 45 minutes to cool under similar conditions. If both air conditioners are switched on at same instance then how long will it take to cool the room approximately ? 11177 05b5cc728e4d2b4197774f723
5b5cc728e4d2b4197774f723- 118 minutesfalse
- 219 minutesfalse
- 322 minutestrue
- 424 minutesfalse
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Answer : 3. "22 minutes"
Explanation :
Answer: C) 22 minutes Explanation: Let the two conditioners be A and B 'A' cools at 40min 'B' at 45min Together =(axb)/(a+b) = (45x40)/85 = 21.1764 = (approx) 22 min.
Q: "I am five times as old as you were, when I was as old as you are", said a man to his son. Find out their present ages, if the sum of their ages is 64 years ? 10985 05b5cc754e4d2b4197774fba4
5b5cc754e4d2b4197774fba4- 1Father = 50; Son =14false
- 2Father = 40; Son =24true
- 3Father = 60; Son =4false
- 4Father = 48; Son =16false
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Answer : 2. "Father = 40; Son =24"
Explanation :
Answer: B) Father = 40; Son =24 Explanation: Let the present age of the man be 'P' and son be 'Q',Given, P + Q = 64 or Q = (64 - P)Now the man says "I am five times as old as you were, when I was as old as you are",So, P = 5[B - (P - Q)]We get 6P = 10Q,Substitute value for Q,6P = 10(64 - P),Therefore P = 40, Q = 24.
Q: There is an empty reservoir whose capacity is 30 litres. There is an inlet pipe which fills at 5 L/min and there is an outlet pipe which empties at 4 L/min. Both the pipes function alternately for 1 minute. Assuming that the inlet pipe is the first one to function, how much time will it take for the reservoir to be filled up to its capacity? 10984 05b5cc77ae4d2b4197775013d
5b5cc77ae4d2b4197775013d- 149.5 minfalse
- 250 minfalse
- 351 mintrue
- 452 minfalse
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Answer : 3. "51 min"
Explanation :
Answer: C) 51 min Explanation: The work to be done = Capacity of reservoir = 30 litres. 1st Minute ---> inlet pipe opened ---> 5 lit filled 2nd minute ---> inlet pipe closed; outlet pipe opened ---> 4 lit emptied In 2 minutes (5 litres - 4 litres = 1lit) is filled into the reservoir. It takes 2 minutes to fill 1lit ---> it takes 50 minutes to fill 25 litres into the reservoir. In the 51st minute inlet pipe is opened and the reservoir is filled.
Q: Find the Odd one out of the given series 6, 15, 35, 77, 165, 221 10789 05b5cc6d9e4d2b4197774e84d
5b5cc6d9e4d2b4197774e84d- 1221false
- 2165true
- 335false
- 477false
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Answer : 2. "165"
Explanation :
Answer: B) 165 Explanation: The terms of the series are products of two consecutive prime numbers i.e. (2 x 3), (3 x 5), (5 x 7), (7 x 11),..... So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.
Q: Four ladies A, B, C and D and four gentlemen E, F, G and H are sitting in a circle round a table facing each other. Directions: (1) No two ladies or two gentlemen are sitting side by side. (2) C, who is sitting between G and E is facing D. (3) F is between D and A and is facing G. (4) H is to the right of B. Question: 1. Who are immediate neighbours of B? 2. E is facing whom? 10657 05b5cc77ae4d2b41977750156
5b5cc77ae4d2b41977750156- 1G & H , Htrue
- 2F & H , Bfalse
- 3E & F , Ffalse
- 4E & H , Gfalse
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Answer : 1. "G & H , H"
Explanation :
Answer: A) G & H , H Explanation: From the directions given : From the fig. it is clear that 1) neighbours of B are G , H. 2) E is facing H.
Q: किसी 729 लीटर दूध तथा पानी के मिश्रण में दूध का पानी से अनुपात 7ः2 है। एक ऐसा मिश्रण, जिसमें दूध तथा पानी का अनुपात 7ः3 हो, प्राप्त करने के लिए उपरोक्त मिश्रण में मिलाए जाने वाली पानी की मात्रा होगी- 10527 65d1b29881fc62311c7736a4f
5d1b29881fc62311c7736a4f- 181true
- 272false
- 345false
- 456false
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