is there any general formula?

From a deck of 52 cards, a card is picked and its value is recorded (say 10 of spades) and it is placed back in the deck. This process is repeated 100...

Find x such that |x + a| - |x - b| > 0 where a < b. x > b x < (b - a)/2 x > (b - a)/2 None of these Que.26 Find th...

Two real roots of a quadratic polynomial (x + a)(x + b) + 4 are p and q. What are the roots of the quadratic polynomial (x - p)(x - q) – 4? a, b ...

Find the sum of squares of roots of the equation (x2 - 1)2 = 4x + 1. 0 -2 -4 4

What are the last two digits of 9119 – 1991? 62 38 82 18

Find the number of integral triplets (a, b, c) such that 1 ≤ a ≤ b ≤ c ≤ 10. 120 180 220 286

Que.12 Diagonals of a quadrilateral intersect in 1 point, and that of a pentagon intersect in at most 5 distinct points. What is the maximum number of...

Que.10 In annual dealer meet of Lam Organics, all 101 dealers are gathered and they shook hands with each other. It was known later that each dealer s...

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Keshav and Krishna start a game with one pile of 40 coins. They take turns. On each turn, a player must take 1, 3, or 4 coins from the pile. The playe...

Three men make the following statements regarding a murder that they are suspected of. Two of the men are lying, and one of them is telling the truth...

Solution please

In a regular polygon of 2012 sides, distance from centre of polygon to a vertex is 5cm. Find the area of the polygon approximately. 44 31 78