# Tag Archives: QA – Placement Quizzes-Progressions

The value of the expression 100∑i=2 1/logi100! is: (A) 0.01 (B) 0.1 (C) 1 (D) 10 Answer: (C) Explanation: The expression 100∑i=2 1/logi100! can be… Read More
Given an expression 13∑n=11/n which can also be written as a/13!  What would be the remainder if a is divided by 11? (A) 3 (B)… Read More
Four consecutive terms of an increasing arithmetic sequence are : x, 17, 3x – y2 – 2 and 3x + y2 – 30.  The sum… Read More
Calculate the sum of given series: log1010 + log10102 + … + log1010n (A) (B) (C) (D) Answer: (D)Explanation: Rewriting the expression as 1 +… Read More
If the average of the given 7 consecutive numbers is x. Now, the next three numbers are also added, what effect will it have on… Read More
A tennis ball is initially dropped from a building of height 180 m. After striking the ground, it rebounds (3/5)th of the height from which… Read More
For n positive integers, if their product is nn, then what will be their sum?  (A) Equal to n+(1/n) (B) Equal to n (C) A… Read More
Find the AM of series: 10, 7, 4, 1, -2 (A) 13/2 (B) 14/3 (C) 4 (D) 16/5 Answer: (C) Explanation: AM = (a1+a2+a3+……+an)/n =(n(a1+an)/2)/n… Read More
Calculate the arithmetic mean of the given series: 2, 6, 10, 14, 18, 22, 26, 30. (A) 8 (B) 16 (C) 32 (D) None of… Read More