Quantitative Aptitude Practice Question and Answer
8Q: The average age of a couple is 24 years when they were married five years ago but now the average age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child ? 2315 05b5cc6d6e4d2b4197774e665
5b5cc6d6e4d2b4197774e665- 12 yrstrue
- 24 yrsfalse
- 33 yrsfalse
- 45 yrsfalse
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Answer : 1. "2 yrs"
Explanation :
Answer: A) 2 yrs Explanation: 29 x 2 = 5820 x 3 = 60 ----------- 2 years Therefore, the age of child is 2 years.
Q: How many seconds in 10 years? 2312 05b5cc695e4d2b4197774c534
5b5cc695e4d2b4197774c534- 131523500 secfalse
- 2315360000 sectrue
- 3315423000 secfalse
- 4315354000 secfalse
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Answer : 2. "315360000 sec"
Explanation :
Answer: B) 315360000 sec Explanation: We know that, 1 year = 365 days 1 day = 24 hours 1 hour = 60 minutes 1 minute = 60 seconds. Then, 1 year = 365 x 24 x 60 x 60 seconds. = 8760 x 3600 1 year = 31536000 seconds. Hence, 10 years = 31536000 x 10 = 315360000 seconds.
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 ? 2312 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: Express 6.72 % in ratio ? 2309 05b5cc6d9e4d2b4197774e839
5b5cc6d9e4d2b4197774e839- 165 : 124false
- 242 : 625true
- 321 : 125false
- 437 : 442false
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Answer : 2. "42 : 625"
Explanation :
Answer: B) 42 : 625 Explanation: 6.72/100 = 672/10000 = 42/625
Q: Dot cabs company provides cabs for software employees. The company has 8 Swift dzires, 6 Scorpios, 7 Innovas and few small cars. If Swift dzire makes one fourth of the total fleet, how many small cars are there in the company ? 2307 05b5cc741e4d2b4197774f9ea
5b5cc741e4d2b4197774f9ea- 19false
- 210false
- 311true
- 412false
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Answer : 3. "11"
Explanation :
Answer: C) 11 Explanation: Given the company has 8 SD + 6 SRP + 7 IN = 21 cars + 'x' small cars.Given SD makes 1/4 th of the total fleet.=> 8 = 1/4 (21 + x)=> 32 = 21 + x=> x = 11 Therefore, the company has 11 small cars.
Q: 270 metre long train running at 10 km/hrs crosses another train running at 80 km/hrs. in 20 seconds Trains are running in opposite direction. Length of seconds train? 2305 05d15e01044a3a75f13296b30
5d15e01044a3a75f13296b30- 1240 metrefalse
- 2320 metrefalse
- 3260 metrefalse
- 4230 metretrue
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Answer : 4. "230 metre"
Q: What is the equivalent compound ratio of 5:6::7:10::6:5 ? 2300 05b5cc6e3e4d2b4197774eccf
5b5cc6e3e4d2b4197774eccf- 17 : 9false
- 29 : 7false
- 37 : 4false
- 47 : 10true
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Answer : 4. "7 : 10"
Explanation :
Answer: D) 7 : 10 Explanation: Given 5:6 :: 7:10 :: 6:5 We know that compound ratio is calculated as a:b :: c:d :: e:f(axcxe):(bxdxf) => (5x7x6):(6x10x5)=> (210):(300)= 7:10
Q: One girl can eat 112 chocolates in half a minute, and her boy friend can eat half as many in twice the length of time. How many chocolates can both boy and girl eat in 12 seconds ? 2297 05b5cc745e4d2b4197774fa27
5b5cc745e4d2b4197774fa27- 144false
- 232false
- 356true
- 449false
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Answer : 3. "56"
Explanation :
Answer: C) 56 Explanation: Girl eats 112 chocolates in 30 sec so she can eat in 12 sec is 12 x 112/30 = 44.8 chocolates. Her boy friend can eat one-half of 112 in twice of 30 sec so he can eat 56 in 60 sec Then he can eat in 12 sec is 56 x 12/60 = 11.2 chocolates. Hence, together they can eat = 44.8 + 11.2 =56 chocolates in 12 seconds.