Quantitative Aptitude Practice Question and Answer
8Q: A train covered k km at 40 kmph and another 2k km at 20 kmph. Find the average speed of the train in covering the entire 3k km ? 1931 05b5cc6dce4d2b4197774e965
5b5cc6dce4d2b4197774e965- 128 kmphfalse
- 224 kmphtrue
- 326 kmphfalse
- 432 kmphfalse
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Answer : 2. "24 kmph"
Explanation :
Answer: B) 24 kmph Explanation: Total time taken = k/40 + 2k/20 hours = 5k/40 = k/8 hours Average speed = 3k/(k/8) = 24 kmph.
Q: Avinash gave a sum of 5400 at the simple rate of interest of 8% to Rajeev for 4 years and Rajeev gave this amount to Chanukya at the rate of 6% for 4 years. Find how much extra amount has to be paid by Rajeev to Avinash after 4 years? 1931 05b5cc698e4d2b4197774c618
5b5cc698e4d2b4197774c618- 1Rs. 364false
- 2Rs. 432true
- 3Rs. 498false
- 4Rs. 554false
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Answer : 2. "Rs. 432"
Explanation :
Answer: B) Rs. 432 Explanation: Here Avinash gave to Rajeev and Rajeev gave the same to Chanukya Principal amount and Time is same but the only difference is Rate of interest. Rajeev took @ 8% and gave it to Chanukya @ 6% Here the difference in interest rate = 2% 2% of 5400 should be the extra amount paid by Rajeev to Avinash Required amount = 2 x 5400 x 4100 = 432 Hence, Rs. 432 is the extra amount has to be paid by Rajeev to Avinash after 4 years.
Q: A cuboid of dimension 24cm x 9cm x 8 cm is melted and smaller cubers are of side 3 cm is formed.find how many such cubes can be formed ? 1931 05b5cc701e4d2b4197774f1c1
5b5cc701e4d2b4197774f1c1- 164true
- 256false
- 348false
- 440false
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Answer : 1. "64"
Explanation :
Answer: A) 64 Explanation: Volume of cuboid = (24 x 9 x 8) cm = 1728 cu.cmVolume of small cube = (3 x 3 x 3) cm = 27 cu.cm So, No. of small cubes formed = 1728/27 = 64.
Q: A person lends Rs. 1540 for five years and Rs. 1800 for four years. If he gets Rs. 1788 as interest on both amounts, what is the rate of interest ? 1929 05b5cc6c8e4d2b4197774deec
5b5cc6c8e4d2b4197774deec- 114.5%false
- 211%false
- 312%true
- 410.5%false
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Answer : 3. "12%"
Explanation :
Answer: C) 12% Explanation: Let the interest rate be r% We know that, S.I = PTR/100 => (1540 x 5 x r)/100 + (1800 x 4 x r)/100 = 1788 => r = 178800/14900 = 12%
Q: K can lay Highway road between two cities in 16 days. L can do the same job in 12 days. With the help of M, they completes the job in 4 days. How much days does it take for M alone to complete the work ? 1929 05b5cc6cfe4d2b4197774e32d
5b5cc6cfe4d2b4197774e32d- 147/7 daysfalse
- 259/6 daysfalse
- 348/5 daystrue
- 457/5 daysfalse
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Answer : 3. "48/5 days"
Explanation :
Answer: C) 48/5 days Explanation: Amount of work K can do in 1 day = 1/16 Amount of work L can do in 1 day = 1/12 Amount of work K, L and M can together do in 1 day = 1/4 Amount of work M can do in 1 day = 1/4 - (1/16 + 1/12) = 3/16 – 1/12 = 5/48 => Hence M can do the job on 48/5 days = 9 (3/5) days
Q: Maneela lent Rs. 8000 partly at the rate of 5% and partly at the rate of 6% per annum simple interest. The total interest she get after 2 years is Rs. 820, then in which ratio will Rs. 8000 is to be divided? 1928 05b5cc6bee4d2b4197774d9b5
5b5cc6bee4d2b4197774d9b5- 17:1true
- 213:5false
- 315:7false
- 42:7false
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Answer : 1. "7:1"
Explanation :
Answer: A) 7:1 Explanation: Maneela lent Rs. 8000 in two parts,
Q: Two trains are running at 60 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 6 seconds. What is the length of the fast train ? A. 6623 mts B. 6632 mts C.6345 mts D. 6354 mts 1928 05b5cc76fe4d2b4197774ff44
5b5cc76fe4d2b4197774ff44- 1Option Atrue
- 2Option Bfalse
- 3Option Cfalse
- 4Option Dfalse
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Answer : 1. "Option A"
Explanation :
Answer: A) Option A Explanation: As Trains are moving in same direction, Relative Speed = 60-20 = 40 kmph --> 40×518=1009 m/sec Length of Train= Speed * Time Length = 1009×6 ⇒2003=6623 mts
Q: What is 85 of 352? 1928 05b5cc6a6e4d2b4197774cd42
5b5cc6a6e4d2b4197774cd42- 121.5%false
- 224.14%true
- 323.68%false
- 425.47%false
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Answer : 2. "24.14%"
Explanation :
Answer: B) 24.14% Explanation: Here 85 of 352 => 85 is what percent in 352 Let p% of 352 is 85 Percentage(%) is generally calculated in the total of 100. => p x 352/100 = 85 => p = 8500/352 = 24.14% Hence, 85 is 24.14% of 352.