Quantitative Aptitude Practice Question and Answer
8Q: The ratio of efficiencies of P, Q and R is 2 : 3 : 4. While P and R work on alternate days and Q work for all days. Now the work completed in total 10 days and the total amount they get is Rs. 1200. Find the amount of each person(respectively). 2072 05b5cc69de4d2b4197774c914
5b5cc69de4d2b4197774c914- 1200, 600, 400true
- 2400, 600, 200false
- 3600, 200, 400false
- 4400, 200, 600false
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Answer : 1. "200, 600, 400"
Explanation :
Answer: A) 200, 600, 400 Explanation: Ratio of efficiencies of P, Q and R = 2 : 3 : 4 From the given data, Number of working days of P, Q, R = 5 : 10 : 5 Hence, ratio of amount of p, Q, R = 2x5 : 3x10 : 4x5 = 10 : 30 : 20 Amounts of P, Q, R = 200, 600 and 400.
Q: If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ? 2070 05b5cc75ce4d2b4197774fc48
5b5cc75ce4d2b4197774fc48- 124%false
- 229%false
- 334%false
- 425%true
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Answer : 4. "25%"
Explanation :
Answer: D) 25% Explanation: Here, k = 7 and l = 28Therefore, first number = klx100 % of second number = 7/28 x 100% of second number = 25% of second number.
Q: A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ? 2069 05b5cc70ee4d2b4197774f34c
5b5cc70ee4d2b4197774f34c- 125true
- 224false
- 323false
- 421false
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Answer : 1. "25"
Explanation :
Answer: A) 25 Explanation: (A+B+C) do 1 work in 10 days. So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5 Remaining work=1-2/5=3/5 (B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50 Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25 A does 1/25 work in in 1 day Therefore 1 work in 25 days.
Q: Twenty men can do a work in eighteen days. Eighteen women can complete the same work in fifteen days. What is the ratio between the capacity of a woman and a man ? 2068 05b5cc774e4d2b4197775002a
5b5cc774e4d2b4197775002a- 14:5false
- 23:4false
- 34:3true
- 42:3false
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Answer : 3. "4:3"
Explanation :
Answer: C) 4:3 Explanation: (20 x 18) men can complete the work in in one day. one man's one day work = 1/360 (18 x 15) women can complete the work in 1 day 1 woman's one day work = 1/270 So, required ratio = 1270:1360= 4:3
Q: How many degrees will the minute hand move, in the same time in which the second hand move 5400 ? 2065 05b5cc6e9e4d2b4197774ee29
5b5cc6e9e4d2b4197774ee29- 190 degreestrue
- 285 degreesfalse
- 360 degreesfalse
- 445 degreesfalse
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Answer : 1. "90 degrees"
Explanation :
Answer: A) 90 degrees Explanation: Minute hand covers 5400/60 = 90°
Q: If watches bought at prices ranging from Rs. 200 to Rs. 350 are sold at prices ranging from Rs. 300 to Rs. 425. What is the greatest possible profit that might be made in selling nine watches ? 2062 05b5cc75ce4d2b4197774fc89
5b5cc75ce4d2b4197774fc89- 1Rs. 1800false
- 2Rs. 2000false
- 3Rs. 2025true
- 4Rs. 1750false
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Answer : 3. "Rs. 2025"
Explanation :
Answer: C) Rs. 2025 Explanation: Profit would be maximum if watches are brought for Rs. 200 and sold for Rs. 425Profit = Rs. (425 - 200) = Rs. 225Profit of 9 watches = Rs. 225 x 9 = Rs.2,025.
Q: The largest 4 digit number exactly divisible by 88 is ? 2057 05b5cc728e4d2b4197774f6d2
5b5cc728e4d2b4197774f6d2- 19944true
- 29768false
- 38888false
- 49988false
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Answer : 1. "9944"
Explanation :
Answer: A) 9944 Explanation: The largest 4 digit number is = 9999After dividing 9999 with 88, we get 55 as remainderso largest 4 digit number divisible by 88 = 9999-55 = 9944.
Q: One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in ? 2052 05b5cc6f1e4d2b4197774ef3f
5b5cc6f1e4d2b4197774ef3f- 185 minfalse
- 292 minfalse
- 3187 minfalse
- 4144 mintrue
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Answer : 4. "144 min"
Explanation :
Answer: D) 144 min Explanation: Let the slower pipe alone fill the tank in x min. Then, faster pipe will fill it in x/3 min. 1/x + 3/x = 1/36 4/x = 1/36 => x = 144 min.