WIPRO

Aptitude Questions:

Q1) Solve for x and y:
1/x - 1/y = 1/3, 1/x2 + 1/y2 = 5/9.
                                                                                           Ans: x = 3/2 or -3 and y = 3 or -3/2.
Q2)Daal is now being sold at Rs. 20 a kg. During last month its rate was 
Rs. 16 per kg. By how much percent should a family reduce its consumption so 
as to keep the expenditure fixed? 
                                                                                                      Ans: 20 %.

Q3) Find the least value of 3x + 4y if x2y3 = 6. 
                                                                                                       Ans:10.
Q4) Can you find out what day of the week was January 12, 1979?
                                                                                                      Ans: Friday.
Q5) A garrison of 3300 men has provisions for 32 days, when given at a rate 
of 850 grams per head. At the end of 7 days a reinforcement arrives and it was 
found that now the provisions will last 8 days less, when given at the rate 
of 825 grams per head. How, many more men can it feed?
                                                                                                       Ans: 1700 men.
Q6) From 5 different green balls, four different blue balls and three 
different red balls, how many combinations of balls can be chosen taking at least 
one green and one blue ball?
                                                                                                        Ans: 3720.
Q7) Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 
& 30 minutes respectively while C can empty it in 15 minutes. If A, B & C 
are kept open successively for 1 minute each, how soon will the tank be filled?
                                                                                                        Ans: 167 minutes.
Q8) A person walking 5/6 of his usual rate is 40 minutes late. What is his 
usual time? 
                                                                                                        Ans: 3 hours 20 minutes.






Q9) John weighs twice as much as Marcia. Marcia's weight is 60% of Bob's weight. Dave weighs 50% of Lee's weighs 190% of John's weight. Which of these 5 persons weighs the least? 
A. Bob 
B. Dave
 C. John
 D. Lee
 E. Marcia                                                                                          Ans:E
                                                                                                 
Q10) A trip takes 6 hours to complete. After traveling 1/4 of an hour, 1-3/8hours, and 2-1/3 hours, how much time does need to complete the trip? 
A. 2-1/12hours 
B. 2hours, 2-1/2 minutes 
C. 2 hours, 5minutes
 D. 2-1/8 hours                                                                                  Ans:  B

Q11) It takes 30 days to fill a laboratory dish with bacteria. If the size of the bacteria doubles each day, how long did it take for the bacteria to fill one half of dish?                         Ans:29days
 Q12)A car wash can wash 8 cars in 18 minutes, At this rate, how many cars can the car wash in 3 hours?                                                                                                                       
                                                                                                                       Ans:80
Q13)If the ratio of the areas of 2 squares is 2:1, then the ratio of the perimeters of the squares is   
                                                                                                                     Ans: sqrt(2):1


Q14)In a survey of town of Wasco, it was found that 65% of the people surveyed watched the news on television, 40% read newspaper, and 25% read a newspaper and watched the news on television. What percent of the people surveyed neither watched the news on the television or read a newspaper?                                                                                                     
                                                                                                                      Ans:20% 
Q15)City B is 5 miles east of City A. City C is 10 miles southeast of City B. Which of the following is the closest to the distance from City A to City C?                                                                                                                                 
                                                                                                                       Ans:14 miles
Q16) If the area of a square increases by 69%, then the side of the square increased by 
                  Ans: 30%.let the area of sqr is 100.and now it increases to 169.so side is inc by 3 means 30%

Q17)There are 30 socks in a drawer. 60% of the socks are red and the rest are blue. What is the minimum number of socks that must be taken from the drawer without looking in order to be certain that at least two blue socks have been chosen?                                                                       Ans: 20 

Q18)Out of 55 eggs 5 are defective. What is % of defective eggs?              Ans: 9/11% 

Q19)Salary is 's' per month, 'x'% of salary is given as bonus, if 3 months salary is s1, s2, and s3 then what is his salary?                                                                       Ans: s1*x/100 + s2*x/100 + s3*x/100 
Q20)Consider expression 'ab' What happens when 'a' is divided by 'c' & 'b' is multiplied by 'c'.
                                                                                            Ans: value remains same 
Q21) Area of triangle=1/2*b*h, base is increased by 4 times & height is divided by 2, the net effect of area.                                                                                    Ans:twice the original area
Q22) In base representation for a rupee 100 paise then base 8 representation. What is rupee value?
                                                                                             Ans: 144 
Q23)A>B, B>C, C=D, D>E then which is greatest a) A/B b) A/C c) A/E d) none 
                                                                                             Ans: C 
Q24)To travel 'm' miles the time is 'h' hours then what is the time taken to travel M miles.        
                                                                                             Ans: M*h/m 
Q25)A sum 's' is divided into 4 parts. Second person gets Rs10 more than first. Third person gets Rs10 more than second, fourth gets Rs10 more than third. How much amount do first person gets. 
                                                                                              Ans: (s-60)/4 
Q26) Fridge cost R Rs, cover value is 5, discount d% then its new cost         
                                                                                               Ans: R-R*d/100-5(1-d/100)
Q27)1/8 is divided by 's,' if 's' is increased by 2 times, what is the result.  
                                                                                               Ans:increases two times

Q28)abcD+abcd+aBCd+aBCD then the simplified function is (Capital letters are compliments of corresponding letters A=compliment of A. 
A. a                                                                                        Ans:A
B.. ab
C. abc
D. a(bc)*
E. (bc)*=compliment of bc

Q29)If A>B then
F=F(G);
else B>C then
F=G(G);
In this, for 75% times A>B and 25% times B>C then, is 10000 instructions are there, then the ratio of F to G 
A. 7500:2500                                                                                            Ans:A
B. 7500:625
C. 7500:625
Q30)CATG. : DIFFICULT+ CALCULATIVE
40 men can finish a job in 40 days.
5 men leave after every 10th day.
find the no. of days. the job will be done ?
                                                                                                                   Ans:57days