what is the mistake if we do : "2 same 2 same : 3C1* 2C1 * (4!)/{(2!) * (2!)}"
Nothing just divide by 2! so as to make sure double counting is taken care of. eg. We have II,EEE,FF Suppose we want to choose I and F and lets say we choose I first and F 2nd This can be done in 3C1*2C1 ways Now if we choose F 1st and I 2nd again 3C1*2C1 But these r the same case hence divide by 2!
Answer question nos. 96 €“ 97 based on the following information. From a group of 545 contenders, a party has to select a leader. Even after holding a series of meetings, the politicians and the general body failed to reach a consensus. It was then proposed that all 545 contenders be given a number from 1 to 545. Then they will be asked to stand on a podium in a circular arrangement, and counting would start from the contender numbered 1. The counting would be done in a clockwise fashion. The rule is that every alternate contender would be asked to step down as the counting continued, with the circle getting smaller and smaller, till only one person remains standing. Therefore the first person to be eliminated would be the contender number 2. 96. Which position should a contender choose if he has to be the leader? A. 3 B. 67 C. 195 D. 323 E. 451 97. One of the contending politicians, Mr. Chanaya, was quite proficient in calculations and could correctly figure out the exact position. He was the last person remaining in the circle. Sensing foul play the politicians decided to repeat the game. However, this time, instead of removing every alternate person, they agree on removing every 300th person from the circle. All other rules were kept intact. Mr. Chanaya did some quick calculations and found that for a group of 542 people the right position to become a leader would be 437. What is the right position for the whole group of 545 as per the modified rule? A. 3 B. 194 C. 249 D. 437 E. 543
A person lent out some money for 1year at 6% per annum simple interest and after 18months he again lent out the same money at a simple interest of 24% per annum. In both cases he got Rs.4704. What was the amount that he lent out if interest is paid half yearly? a rs 4000 b rs 4200 c rs 4400 d rs 3600
A person lent out some money for 1year at 6% per annum simple interest and after 18months he again lent out the same money at a simple interest of 24% per annum. In both cases he got Rs.4704. What was the amount that he lent out if interest is paid half yearly?a rs 4000 b rs 4200 c rs 4400 d rs 3600
@joyjitpal96. Write 545 in binary form1000100001Remove the leadin digit and put it at the end0001000011Convert 1000011 to decimal u get the ans97. Manually counted this one looking for a better approach@chillfactor sir help plz
solution by chill sir
Lets say that 1st person kills the 2nd and then the 3rd persons gets the sword and he will kill 4th person and so on.
In case there are 2ⁿ persons, whoever has the sword in the starting will be the only survivor. Suppose there are 2ⁿ + 1 persons. So, first person will kill 2nd person, now we are left with exactly 2ⁿ persons and sword is with 3rd person and we know that when 2ⁿ persons are there then the person having sword will be the only survivor in the end.
Similarly, when there are 2ⁿ + k persons we just have to find the who will be having the sword once k persons are dead.
Person standing at '2k'th position is the kth person to die and "2k + 1'th person will get tge sword. So,he will be the last man standing
@deedeedudu Do we ever provide SI half yearly as in this case becuse it wouldn't make any diffrence 6%=3%+3% + 4200 6 % is 252. A= 4452 "4704 " is stated as the amount not 4452
