Question
Consider a sequence (8, 11, 14, 17, 20, … up to 2020
terms). If P represents the average of all positive even integers and Q represents the average of all positive odd integers, find the difference between P and Q, where n is an integer greater than 198.Solution
If, we take 4 terms = 8, 11, 14, 17 Value of P = (8 + 14)/2 = 11 Value of Q = (11 + 17)/2 = 14 Difference of P and Q = 14 – 11 = 3 If we take 6 terms = 8, 11, 14, 17, 20, 23 Value of P = (8 + 14 + 20)/3 = 14 Value of Q = (11 + 17 + 23)/3 = 17 Difference of P and Q = 17 – 14 = 3 If we take 2020 terms, the difference will be the same = 3 Hence answer is option B
How many people live between the one who likes Sony and Dell?
Who is taller than Rakesh but shorter than Bhaskar?
Who likes Blue?
Statements:
G ≥ J > L ≥ M = Q =T; Q < C = J < B
Conclusions:
I). Â T < B
II).  G ≤ B
...Seven boxes T, E, V, W, X, Y and Z are kept one above another. W is three boxes above Y. There are two boxes between W and Z. T is immediately above V. ...
Who lives on top floor?
Which box is placed at bottom of the stack?
If all the boxes are placed in the alphabetical order from the left end, then how many boxes remain unchanged in its position?
Who among the following born on 5th of February?Â
On which of the following shelf number does Box G is kept from the top?
