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Instruction:
1. | = ?1 /1+ x(b - a) + x(c - a)1/1 + x(a - b) + x(c - b)1 /1+ x(b - c) + x(a - c) |
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Your Answer: Option Correct Answer: Option B Explanation:
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2. | In what ratio must water be mixed with milk to gain 16% on selling the mixture at cost price? |
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Your Answer: Option Correct Answer: Option A Explanation:
Let C.P. of 1 litre milk be Re. 1.
By the rule of alligation, we have:
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3. | Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is: |
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Your Answer: Option Correct Answer: Option D Explanation:
Distance covered in crossing each other = (140 + 160) m = 300 m.
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4. | A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is: |
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Your Answer: Option Correct Answer: Option B Explanation: Let the middle digit be x. Then, 2x = 10 or x = 5. So, the number is either 253 or 352. Since the number increases on reversing the digits, so the hundred's digits is smaller than the unit's digit. Hence, required number = 253. Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
5. | -84 x 29 + 365 = ? |
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Your Answer: Option Correct Answer: Option D Explanation:
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6. | A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour? |
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Your Answer: Option Correct Answer: Option B Explanation:
= 2 m/sec. Converting m/sec to km/hr (see important formulas section)
= 7.2 km/hr. Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
7. |
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Your Answer: Option Correct Answer: Option B Explanation:
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8. | A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work? |
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Your Answer: Option Correct Answer: Option C Explanation:
Whole work will be done by A and B in (3 x 5) = 15 days.
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9. |
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Your Answer: Option Correct Answer: Option B Explanation:
= (3 + 2√2) + (3 - 2√2) - 2 = 4.
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10. | The cost price of a Rs. 100 stock at 4 discount, when brokerage is % is |
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Your Answer: Option Correct Answer: Option C Explanation: C.P. = Rs.100 - 4 +1= Rs. 96.254 Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
11. | Three unbiased coins are tossed. What is the probability of getting at most two heads? |
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Your Answer: Option Correct Answer: Option D Explanation: Here S = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH} Let E = event of getting at most two heads. Then E = {TTT, TTH, THT, HTT, THH, HTH, HHT}.
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12. | The difference between the local value and the face value of 7 in the numeral 32675149 is |
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Your Answer: Option Correct Answer: Option D Explanation: (Local value of 7) - (Face value of 7) = (70000 - 7) = 69993 Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
13. | How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm? |
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Your Answer: Option Correct Answer: Option C Explanation: Number of bricks =Volume of the wall=800 x 600 x 22.5= 6400.Volume of 1 brick25 x 11.25 x 6 Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
14. | 331, 482, 551, 263, 383, 362, 284 |
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Your Answer: Option Correct Answer: Option B Explanation: In each number except 383, the product of first and third digits is the middle one.
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15. | If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time? |
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Your Answer: Option Correct Answer: Option A Explanation:
C.I. = Rs. (551.25 - 500) = Rs. 51.25 Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
16. | A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is: |
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Your Answer: Option Correct Answer: Option C Explanation:
Time = 1 minute = 60 seconds. Let the length of the tunnel be x metres.
3(800 + x) = 3900 x = 500. Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
17. | The interest on Rs. 750 for 2 years is the same as the true discount on Rs. 960 due 2 years hence. If the rate of interest is the same in both cases, it is: |
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Your Answer: Option Correct Answer: Option B Explanation: S.I. on Rs. 750 = T.D. on Rs. 960. This means P.W. of Rs. 960 due 2 years hence is Rs. 750. T.D. = Rs. (960 - 750) = Rs. 210. Thus, S.I. on R.s 750 for 2 years is Rs. 210.
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18. |
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Your Answer: Option Correct Answer: Option A Explanation:
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19. | A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water? |
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Your Answer: Option Correct Answer: Option D Explanation: Let the speed of the boat in still water be x kmph. Then, Speed downstream = (x + 3) kmph, Speed upstream = (x - 3) kmph.
2x + 6 = 3x - 9 x = 15 kmph. Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
20. | A number was divided successively in order by 4, 5 and 6. The remainders were respectively 2, 3 and 4. The number is: |
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Your Answer: Option Correct Answer: Option A Explanation: 4 | x z = 6 x 1 + 4 = 10 ----------- 5 | y -2 y = 5 x z + 3 = 5 x 10 + 3 = 53 ----------- 6 | z - 3 x = 4 x y + 2 = 4 x 53 + 2 = 214 ----------- | 1 - 4 Hence, required number = 214. Learn more problems on : Online Aptitude Test Discuss about this problem : Discuss in Forum |
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