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 Total number of questions : 20.
 Time alloted : 30 minutes.
 Each question carry 1 mark, no negative marks.
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1.  Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case. 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: Required number = H.C.F. of (91  43), (183  91) and (183  43) = H.C.F. of 48, 92 and 140 = 4. Learn more problems on : Problems on H.C.F and L.C.M Discuss about this problem : Discuss in Forum 
2.  Which of the following fraction is the largest ? 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: L.C.M. of 8, 16, 40 and 80 = 80.
Learn more problems on : Problems on H.C.F and L.C.M Discuss about this problem : Discuss in Forum 
3. 


Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
Learn more problems on : Decimal Fraction Discuss about this problem : Discuss in Forum 
4.  The least perfect square, which is divisible by each of 21, 36 and 66 is: 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: L.C.M. of 21, 36, 66 = 2772. Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11 To make it a perfect square, it must be multiplied by 7 x 11. So, required number = 2^{2} x 3^{2} x 7^{2} x 11^{2} = 213444 Learn more problems on : Square Root and Cube Root Discuss about this problem : Discuss in Forum 
5. 


Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
x^{2} + y^{2} = (2 + 3)^{2} + (2  3)^{2} = 2(4 + 3) = 14 Learn more problems on : Square Root and Cube Root Discuss about this problem : Discuss in Forum 
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.  
6. 


Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: II. Let the present ages of Arun and his son be 11x and 6x years respectively. I. 5 years ago, Arun's age = 2 x His son's age.
Clearly, any two of the above will give Arun's present age. Correct answer is (D). Learn more problems on : Problems on Ages Discuss about this problem : Discuss in Forum 
7.  If A = x% of y and B = y% of x, then which of the following is true? 

Your Answer: Option (Not Answered) Correct Answer: Option E Explanation:
A = B. Learn more problems on : Percentage Discuss about this problem : Discuss in Forum 
8.  If 20% of a = b, then b% of 20 is the same as: 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation:
Learn more problems on : Percentage Discuss about this problem : Discuss in Forum 
9.  3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day? 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Let the required number of working hours per day be x. More pumps, Less working hours per day (Indirect Proportion) Less days, More working hours per day (Indirect Proportion)
4 x 1 x x = 3 x 2 x 8
x = 12. Learn more problems on : Chain Rule Discuss about this problem : Discuss in Forum 
10.  One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in: 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: Let the slower pipe alone fill the tank in x minutes.
x = 144 min. Learn more problems on : Pipes and Cistern Discuss about this problem : Discuss in Forum 
11.  A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is: 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Let the speed of the stream be x km/hr. Then, Speed downstream = (15 + x) km/hr, Speed upstream = (15  x) km/hr.
9x^{2} = 225 x^{2} = 25 x = 5 km/hr. Video Explanation: https://youtu.be/lMFnNB3YQOo Learn more problems on : Boats and Streams Discuss about this problem : Discuss in Forum 
12.  A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was: 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
Learn more problems on : Simple Interest Discuss about this problem : Discuss in Forum 
13.  A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges? 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: Let the side of the square(ABCD) be x metres.
Then, AB + BC = 2x metres. AC = 2x = (1.41x) m. Saving on 2x metres = (0.59x) m.
Learn more problems on : Area Discuss about this problem : Discuss in Forum 
14.  By investing in 16% stock at 64, one earns Rs. 1500. The investment made is: 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation:
Learn more problems on : Stocks and Shares Discuss about this problem : Discuss in Forum 
15.  A man buys a watch for Rs. 1950 in cash and sells it for Rs. 2200 at a credit of 1 year. If the rate of interest is 10% per annum, the man: 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation:
Gain = Rs. (2000  1950) = Rs. 50. Learn more problems on : True Discount Discuss about this problem : Discuss in Forum 
Find the odd man out.  
16.  10, 25, 45, 54, 60, 75, 80 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
Each of the numbers except 54 is multiple of 5.
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Find out the wrong number in the given sequence of numbers.  
17.  582, 605, 588, 611, 634, 617, 600 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.
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18.  36, 54, 18, 27, 9, 18.5, 4.5 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation:
The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.
Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 
19.  56, 72, 90, 110, 132, 150 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: The numbers are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13. So, 150 is wrong. Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 
Insert the missing number.  
20.  8, 24, 12, 36, 18, 54, (....) 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: Numbers are alternatively multiplied by 3 and divided by 2. So, the next number = 54 ÷ 2 = 27. Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 