ashk29

Answer is 60

Answer is (n+1)!-1 1!+2*2!+3*3!+4*4!....................n*n! = 1+(3-1)2!+(4-1)3!+(5-1)4!+.....................................(n+1-1)n! = 3*2!+4*3!+5*4!+............+(n+1)*n! - [2!+3!+4!+....n!]+1 = (n+1)!-2+1 =(n+1)!-1

Answer is B

Answer is 9

answer = 19*3 =57

answer is 28

Answer is E

Answer is A B says Considerably more than 20 percent of drivers and front-seat passengers in Dole County always wear seat belts when traveling by car. But the stimulus says auto not car ............auto would include cars as well as vans , SUV etc........... and statistically its A

Opponents of laws that require automobile drivers and passengers to wear seat belts argue that in a free society people have the right to take risks as long as the people do not harm others as a result of taking the risks. As a result, they conclude that it should be each person’s decision whether or not to wear a seat belt. Which of the following, if true, most seriously weakens the conclusion drawn above? (A) Many new cars are built with seat belts that automatically fasten when someone sits in the front seat. (B) Automobile insurance rates for all automobile owners are higher because of the need to pay for the increased injuries or deaths of people not wearing seat belts. © Passengers in airplanes are required to wear seat belts during takeoffs and landings. (D) The rate of automobile fatalities in states that do not have mandatory seat-belt laws is greater than the rate of fatalities in states that do have such laws. (E) In automobile accidents, a greater number of passengers who do not wear seat belts are injured than are passengers who do wear seat belts The answer is B Why B ? Opponents of laws that require automobile drivers and passengers to wear seat belts argue that in a free society people have the right to take risks as long as the people do not harm others as a result of taking the risks. As a result, they conclude that it should be each person’s decision whether or not to wear a seat belt. what if by not wearing seat belts ...people cause some harm to the other ..that is what B says so it is the best out of the given lot so the answer is B

Answer is B In (I) We get XX or X>Y But from (II) we get Y>X so its sufficient

New area = 9

ans = A 3^4n+2 = 3^2(2n+1)= 9^(2n+1) or odd powers of 9 so 9^odd power +1 is divisible by 10 , hence A

F and J cannot stand in one place , because of that either J is in front of F or behind F Total no. of possibilities = 720 , but half the time F is behind J ( the question specifically says that F need not be just behind J) so ans= 720/2 = 360

ans = 34

answer is A since you know the function for X and Y

Answer is D

ans is (2) 36*36 or 6^4

answer is 9 ( 7-8)

answer = 0.8+0.0025y

Answer is D

The answer is C If c is negated then it becomes hard to make the conclusion

ans B

When the supply of a given resource dwindles, technologies allowing the use of different resources develop, and demand for the resource that was in short supply naturally declines. Then the existing supplies of that resource satisfy whatever demand remains. Among the once-dwindling resources that are now in more than adequate supply are flint for arrowheads, trees usable for schooner masts, and good mules. Because new technologies constantly replace old ones, we can never run out of important natural resources. Which one of the following, if true, most seriously undermines the conclusion? (A) The masts and hulls of some sailing ships built today are still made of wood. (B) There are considerably fewer mules today than there were 100 years ago. © The cost of some new technologies is often so high that the companies developing them might actually lose money at first. (D) Dwindling supplies of a natural resource often result in that resource's costing more to use. (E) The biological requirements for substances like clean air and clean water are unaffected by technological change. The a thing that can undermine the conclusion is .....If technological development can't replace the old ones so its E

This question test ones ability to I dentify necessary assumptions Just read through the stimulus Analysis( missing assumption should be one like the following) 1.0 No one ahead of lee is in line for the job 2.0 D owes Lee the most so she will give L the post 3.0There is isn't ant better possible candidate other than L Since Mayor Drabble always repays her political debts as soon as possible, she will almost certainly appoint Lee to be the new head of the arts commission. Lee has wanted that job for a long time, and Drabble owes Lee a lot for his support in the last election. Which one of the following is an assumption on which the argument depends? (A) Mayor Drabble has no political debt that is both of longer standing than the one she owes to Lee and could as suitably be repaid by an appointment to be the new head of the arts commission. (B) There is no one to whom Mayor Drabble owes a greater political debt for support in the last election than the political debt she owes to Lee. © Lee is the only person to whom Mayor Drabble owes a political debt who would be willing to accept an appointment from her as the new head of the arts commission. (D) Whether Lee is qualified to head the arts commission is irrelevant to Mayor Drabble's decision. (E) The only way that Mayor Drabble can adequately repay her political debt to Lee is by appointing him to head the arts commission. so A wins

Answer is 32 Suppose let us Name the couples : A , B , C, D We can select a couple in 4C3 ways and we can fill the 3 slots in 2C1 ways hence ans = 4C3*(2C1)^3 = 32