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[2014 Set-3 : 2 Marks]Question: Consider the equation: (7526)8 – (Y)8 = (4364)8, where (X)N stands for X to base N. Find Y. (a)1634 (b)1737 (c)3142 (d)3162Answer: (c) 3142Reason: 7526-4364 in base 8 = 3142. In decimal 3926-2292=1634 which is 3142 octal [2015 Set-1 : 1 Mark]Question: Didn’t you buy __ when you went shopping?

[2013 : 2 Marks]Question1.36: Find the sum of the expression 1/(√1+√2) + 1/(√2+√3) + 1/(√3+√4) + ….. + 1/(√80+√81)Options: (a) 7 (b) 8 (c) 9 (d) 10Answer: (b) 8Reason: Rationalize karo: 1/(√n+√(n+1)) = √(n+1)-√n. Telescoping sum = √81-√1 = 9-1 = 8. [2013 : 2 Marks]Question1.37: Out of all the 2-digit integers between 1 and

Q 1.1 [2010 : 1 Mark]Question: Which of the following options is the closest in meaning to the word below? Circuitous (a) Cyclic (b) Indirect (c) Confusing (d) CrookedAnswer: (b) IndirectReason: Circuitous matlab seedha rasta nahi, ghoom ke jana. Q 1.2 [2010 : 1 Mark]Question: The question below consists of a pair of related words