Quantitative Aptitude Practice Question and Answer
8Q: The average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 yrs, and B is 5 years younger to C, then find the difference between the age of A and C? 1906 05b5cc6bbe4d2b4197774d86d
5b5cc6bbe4d2b4197774d86d- 111 yrsfalse
- 29 yrstrue
- 37 yrsfalse
- 413 yrsfalse
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Answer : 2. "9 yrs"
Explanation :
Answer: B) 9 yrs Explanation: Let the present ages of A and B be 'x' and 'y' respectively From the given data, [(x-2) + (y-2)]/2 = 26 => x+y = 56 But given the age of A, 5 years hence is 40 yrs => present age of A = 40 - 5 = 35 yrs => x = 35 => y = 56 - 35 = 21 => Age of B = 21 yrs Given B is 5 years younger to C, => Age of C = 21 + 5 = 26 yrs => Required Difference between ages of A and C = 35 - 26 = 9 yrs.
Q: Two pipes A and B can fill a tank in 16 hrs and 12 hrs respectively. The capacity of the tank is 240 liters. Both the pipes are opened simultaneously and closed after 2 hrs. How much more water need to fill the tank? 1904 05b5cc6bbe4d2b4197774d802
5b5cc6bbe4d2b4197774d802- 170 litfalse
- 2170 littrue
- 390 litfalse
- 4190 litfalse
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Answer : 2. "170 lit"
Explanation :
Answer: B) 170 lit Explanation: Given A alone can fill the tank of capacity 240 lit in 16 hrs. => A can fill in 1 hr = 240/16 = 15 lit => B alone can fill the tank of capacity 240 lit in 12 hrs. => B can fill in 1 hr = 240/12 = 20 lit Now, (A + B) in 1 hr = 15 + 20 = 35 lit But they are opened for 2 hrs => 2 x 35 = 70 lit rae filled Remaining water to be filled in tank of 240 lit = 240 - 70 = 170 lit.
Q: एक व्यापारी को एक रेडियो पर बिक्री हेतु क्या दाम अंकित करना चाहिए जिसे उसने 1200 रूपये में खरीदा था और जबकि वह उसके अंकित मूल्य पर 20 प्रतिशत छुट देना चाहता है तथा चाहता है कि तब भी उसे 25 प्रतिशत का लाभ उसकी बिक्री से मिले- 1904 05d133e2fd2441c3c5ff90a46
5d133e2fd2441c3c5ff90a46- 120%false
- 250%false
- 360%false
- 440%true
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Answer : 4. "40%"
Q: The respective ratio between the speed of a bike, a van and lorry is 3 : 5 : 2. The speed of the van is 250 percent of the speed of the lorry which covers 360 km in 12 hours. What is the average speed of the bike and the van together? 1903 05b5cc6b2e4d2b4197774d397
5b5cc6b2e4d2b4197774d397- 160 kmphtrue
- 262 kmphfalse
- 364 kmphfalse
- 463 kmphfalse
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Answer : 1. "60 kmph"
Explanation :
Answer: A) 60 kmph Explanation: Speed of lorry = 36012 = 30 kmph Speed of van =250100 x 30 = 75 kmph Speed of bike = 35 x 75 = 45 kmph Therefore, now required average speed of bike and van = 75 + 452= 60 kmph.
Q: A is 3 times faster than B. If A can finish a work 32 days less than that of B, find the number of days need to finish the work if both are working together? 1902 05b5cc754e4d2b4197774fb62
5b5cc754e4d2b4197774fb62- 112 daystrue
- 224 daysfalse
- 332 daysfalse
- 416 daysfalse
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Answer : 1. "12 days"
Explanation :
Answer: A) 12 days Explanation: It is given that efficiency ratio =3:1 so time ratio will be 1:3 (since work is same) Also given that time diff = 32 days. ratio difference = 3-1 =2 2 ratio = 32 days 1 ratio = 16 days. So A will alone finish it in 16 days and B will finish it in 16*3 = 48 days. Total work = LCM of 16 and 48 = 48. Total time = Total work/Total efficiency ie; 48/4= 12 days.
Q: एक बस बिना कोई रूकावट के 75 किमी/घंटा की रफ्तार से चल रही है। परन्तु रूकावट के साथ 60 किमी/घंटा की रफ्तार से चल पाती है। प्रति घंटा रूकावट की दर ज्ञात करें? 1898 05d15ed1d5fdb2c68495d9dee
5d15ed1d5fdb2c68495d9dee- 110 मिनटfalse
- 215 मिनटfalse
- 312 मिनटtrue
- 420 मिनटfalse
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Answer : 3. "12 मिनट"
Q: What is the place value of 6 in 64? 1895 05b5cc68be4d2b4197774c36a
5b5cc68be4d2b4197774c36a- 16false
- 260true
- 364false
- 410false
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Answer : 2. "60"
Explanation :
Answer: B) 60 Explanation: We know that, ● Each digit has a fixed position called its place. ● Each digit has a value depending on its place called the place value of the digit. ● The face value of a digit for any place in the given number is the value of the digit itself ● Place value of a digit = (face value of the digit) × (value of the place). Hence, the place value of 6 in 64 = 6 x 10 = 60.
Q: यदि A:B=3:4, B:C=8:9 और C:D=15:16 है तो A:D बताइएं। 1894 15d1b15621fc62311c7736872
5d1b15621fc62311c7736872- 15:8true
- 25:7false
- 315:32false
- 420:44false
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