I used the method of alligation according to my understanding and used approxiamtions to reach to 121.5 as the answer. Could you confirm whether B is the OA so that i can either explain my approach or rework on it if my answer is incorrect?

Shouldn't the answer be 90?
The first place and similarly the 4th place can be filled in 9 ways i.e digits from 1 to 9
The second and the third place can be filled in 10 ways i.e digits from 0 to 9
hence total number of palindromes = 9 X 10 = 90.

Maybe I am missing out some duplication W.r.t the OA.

Hi Experts,

Would you see this as a 700+ question as it was a bit time consuming question.

P.S: I took 3+ mmins to solve this one.

:/

Thanks

C is correct because of the correct use of the Present Perfect tense. Present Perfect tense refers to the a continued action or the continued effect of an action that happened in the past to the present. So Since the 1970 to date there has been a decline of 50% and hence as this is a continous effe...

IMO- C You are correct about the sentence being a run on sentence however the usage of 'which combines' - a non essential modifier would have solved the problem. When a semicolon is used, both the sides of the semicolon need to be individual sentences and need to be related. Option B does not allow ...

According to me B would be the correct answer as it directly relates the usage of audio devices for learning to the impact audio devices have on humans of all ages.

The only problem that I find with this answer is its reference to one third of the population.

I was confused as how to derive the equation for the reciprocal for Y. I did 1/y = (1/a + 1/b)/2 and couldn't understand why it's 1/y = 1/2(1/a + 1/b) Hi Rastis, Both the equations you mentioned 1. 1/y = (1/a + 1/b)/2 2. 1/y = 1/2(1/a + 1/b) mean the same. I assume the mistake that you made was in ...

Thank you Rich.. what I had missed was the parallelism between broke and abandoned. Maybe not interpreting the sentence correctly was the problem !