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The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is?
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The average salary of 3 workers is 95 Rs. per week. If one earns Rs.115 and second earns Rs.65 how much is the salary of the 3rd worker.
A cylinder is inserted in a sphere d/h = 2/3. Find the surface area of the cylinder ?
<!--[if !supportLists]-->1) <!--[endif]-->1 ,27,125,?,729,1331 Ans. 343 Hint. 1^3, 3^3,5^3, 7^3, 9^3………. 2) 7, 19,31,43, ? , 77,89,101 Hint: add 12 to each 3) y w v t r p n Find next letter 4) There is a rectangular Garden whose length and width are 60m X 20m.There is a walkway of uniform width around garden. Area of walkway is 516m^2. Find width of walkway a)1 b) 2 c)3 d)4 Ans: 3 5) ------------------- = 10^4+10^2 Ans: 10^4 6) If a certain sum of money at SI doubles itself in 5 yrs then what is the rate? a)5% b) 10% c)25% d)20% Ans: 20% check answer 7) Fresh Grapes contain 90% water by wt. Dried grapes contain 20% water by %age. What will b wt of dried grapes when we begin with 20 kg fresh grapes? 8. A man engaged a servant on a condition that he’ll pay Rs 90 and also give him a bag at the end of the yr. He served for 9 months 10^10 and was given a turban and Rs 65. So the price of turban is Rs 10 / 19 / 0 / 55 9). The sum of six consecutive odd nos. is 888. What is the average of the nos.? i. 147 ii. 148 iii. 149 iv. 146 10. In a race from pt. X to pt Y and back, Jack averages 30miles/hr to pt Y and 10 miles/hr back to pr X.Sandy averages 20 miles/hr in both directions. If Jack and Sandy start race at same tym, who’ll finish 1st Jack/Sandy/they tie/Impossible to tell 11. A man engaged a servant on a condition that he’ll pay Rs 90 and also give him a bag at the end of the yr. He served for 9 months and was given a turban and Rs 65. So the price of turban is Rs 10 / 19 / 0 / 55 22. Three wheels make 36, 24, 60 rev/min. Each has a black mark on it. It is aligned at the start of the qn. When does it align again for the first tym? 14/20/22/5 sec 23. If 1= (3/4)(1+ (y/x) ) then i. x=3y ii. x=y/3 iii. x=(2/3)y iv. None REASONING Direction for Qn 15-18 An employee has to allocate offices to 6 staff members. The offices are no. 1-6. the offices are arranged in a row and they are separated from each other by dividers>hence voices, sounds and cigarette smoke flow easily from one office to another Miss R needs to use the telephone quite often throughout the day. Mr. M and Mr. B need adjacent offices as they need to consult each other often while working. Miss H is a senior employee and his to be allotted the office no. 5, having the biggest window. Mr D requires silence in office next to his. Mr. T, Mr M and Mr. D are all smokers. Miss H finds tobacco smoke allergic and consecutively the offices next to hers are occupied by non-smokers. Unless specifically stated all the employees maintain an atmosphere of silence during office hrs. The ideal candidate to occupy office farthest from Mr. B will be i. Miss H ii. Mr. M iii. Mr. T iv. Mr. D The three employees who are smokers should be seated in the offices i. 1 2 4 ii. 2 3 6 iii. 1 2 3 iv. 1 2 3 The ideal office for Mr. M would be i. 2 ii. 6 iii. 1 iv. 3 In the event of what occurrence within a period of one month since the assignment of the offices would a request for a change in office be put forth by one or more employees? i. Mr D quitting smoking ii. Mr. T taking over duties formally taken care of by Miss R iii. The installation of a water cooler in Miss H’s office iv. Mr. B suffering from anemia Direction for Qn 24-25 Elle is 3 times older than Zaheer. Zaheer is ½ as old as Waheeda. Yogesh is elder than Zaheer. What is sufficient to estimate Elle’s age? i. Zaheer is 10 yrs old ii. Yogesh and Waheeda are both older than Zaheer by the same no of yrs. iii. Both of the above iv. None of the above Which one of the following statements can be inferred from the info above i. Yogesh is elder than Waheeda ii. Elle is older than Waheeda iii. Elle’s age may be less than that of Waheeda iv. None of the above
Rakesh buys 1 gallon of milk for Rs.12 and mixes it with 20% water. He then sells it for Rs.15, What is the percentage of gain that Rakesh would get.
2 Oranges,3 bananas and 4 apples cost rs.15 . 3 Oranges 2 bananas 1 apple costs rs 10. What is the cost of 3 oranges, 3 bananas and 3 apples
A company manufactures x refrigerators cp.(9000+500x0 sp=500x; what must be the value of x so that atlas the amount gained After selling is equal to the amount spent on production
The price of a candy bar is $1.00. The price of a ten pack of the same candy bar is $7.40. The ten pack of candy bars is what percentage cheaper then purchasing ten candy bars individually?
which one is different in below numbers? 352,792,462,583,475
inept : clever :: languid :
7/8 of 3/7 of a number is equal to 25% of 45% of another number. What is the ratio of the first and the second numbers respectively? (a) 3 : 7 (b) 9: 10 (c) 3 : 10 (d) 3 : 2 (e) None of these
A Farmer owns a square land of 15 m each side with a pole in one of the corners to which he tied his cow with a rope whose length is about 10 m. What is the area available for the cow to graze. (Assume pi = 3)
There are three trucks A, B, C. A loads 10 kg/min. B loads 13 1/3 kg/min. C unloads 5 kg/min. If three simultaneously works then what is the time taken to load 2.4 tones?
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