One bacterium splits into eight bacteria of the next generation. But due to environmental condition only 50% survive and remaining 50% die after producing the next generation. If the seventh generation number is 4,096 million, what is the number in first generation? (CAT-1998) (1) 1 million (2) 2 million (3) 4 million (4) 8 million
One man can do as much work in one day as
a woman can do in 2 days. A child does one
third the work in a day as a woman. If a
contractor hires 39 pairs of hands; men,
women and children in the ratio 6:5:2 andpays them in all `1,113 at the end of theday's work. What must the daily wages of achild be, if the wages are proportional to theamount of work done?(1) `14 (2) `5(3) `20 (4) `7
A ,B and C complete a piece of work in certain time. If A alone does he takes 6 days more. If B alone does he takes 1 day more. If C alone does he takes twice the time. In how many days B and C complete the whole work?
Answer is 4/3. Can anyone explain me how?
find the remainder when 555......upto.15 digits is divided by 17?
man rows upstream in a river. when he rowed 1km from the starting point, his hat fell down and started to move downstream. the ma kept swimming upstream for 5 minutes but realized that he has dropped his hat,then rows downstream to catch the hat.finally, the hat and the man meet at start. find the speed of flow of river.
Find the selling price of goods if two salesmen claim to make 25% profit each, one calculating it on cost price while another on the selling price, the difference in the profits earned being Rs. 100 and selling price being the same in both the cases?
can any1 explain , ans is 1200
- 1600
- 2400
- 2500
- 1200
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XAT 2011
In a locality, there are ten houses in a row. On a particular night a thief planned to steal from three houses of the locality. In how many ways can he plan such that no two of them are next to each other?
approach plz ans 56
Best mba online coaching? Please Suggest Also suggestions are welcome for chosing it
- Alphanumeric
- Handa ka funda
- 2IIM
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XAT 2015 qn:-
Could not get the official solution given 😞 Can someone please explain in detail , every step , (considering me a novice for tough numbers qn)
74. If the last 6 digits of [(M)! - (N)!] are 999000, which of the following option is not possible for (M)x(M - N)? Both (M) and (N) are positive integers and M > N. (M)! is factorial M.
A. 150 B. 180 C. 200 D. 225 E. 234
XAT 2015-
The centre of a circle inside a triangle is at a distance of 625 cm. from each of the vertices of the triangle. If the diameter of the circle is 350 cm. and the circle is touching only two sides of the triangle, find the area of the triangle. A. 240000 B. 387072 C. 480000 D. 506447 E. None of the above
Please give a detailed solution...
30th term of the series 3+5+9+15+23+... is?
- 619
- 921
- 981
- 873
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During re-evaluation, the marks of a student in each subject increased by 20. By what percentage would the average marks obtained by him increase or decrease? (1) 20 % increase (2) 20% decrease (3) 10% increase (4) Cannot be determined
XAT 2015 qn
75. A person is standing at a distance of 1800 meters facing a giant clock at the top of a tower. At 5.00 p.m., he can see the tip of the minute hand of the clock at 30 degree elevation from his eye-level. Immediately, the person starts walking towards the tower. At 5.10 pm., the person noticed that the tip of the minute hand made an angle of 60 degrees with respect to his eye-level. Using threedimensional vision, find the speed at which the person is walking. The length of the minutes hand is 200√3 meters (√3 = 1.732). A. 7.2 km/hour B. 7.5 km /hour C. 7.8 km /hour D. 8.4 km /hour E. None of the above
A shopkeeper increases the price of apples by 20% every 2 months and decreases it by 10% every 3 months. What will be the price of each apple after 5 months if it is `10 now? (1) ` 10.80 (2) ` 12.96 (3) ` 11.80 (4) Cannot be determined
Hi Guys, Anyone can help me in selecting the best coaching institute in Pune ? I want to join a coaching institute for CAT prep 2016. I have already done coaching once from TIME. But to refresh everything, I want to join again. Please help.
Ramesh, Dinesh and Ganesh completed a job in 12 days. They worked together for 4 days in which they completed 44% of the total work. But due to unavoidable circumstances Ramesh quits the job at this point. Work done by Dinesh in 3 days is equal to the work done by Ganesh in 4 days. Find the time taken by the fastest worker to complete the job.
Please post the solution.
A person wants to climb a mountain.The probability that he climbs the mountain is 0.8 when the weather is clear and 0.3 when the weather is not clear.Find the probability that the person is not able to climb the mountain if the probability of having clear weather is 0.6?
A man covers 1/3rd of the distance at 50kmph, next 1/3rd at 30kmph and the rest at 7kmph. What's his average speed?
- 12.8
- 15.3
- 18.2
- 14.2
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Please explain the concept