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Multiple Choice Question with Only One Choice Correct
A bullet is fired normally on an immovable wooden plank. It loses 25% of its kinetic energy in penetrating a thickness x of the plank. What is the total thickness penetrated by the bullet?

(a)	2x	(b)	4x
(c)	6x	(d)	8x

Chemistry

Increasing/Decreasing Characteristics

Increasing basic character

MgO, SrO, K₂O, NiO, Cs₂O

Mathematics

Passage Based Question
Passage I
Let ABCD is a unit square and 0 <

< 1. Each side of the square is divided in the ratio

: 1 -

as shown in Fig. These points are connected to obtain another square. The sides of new square are divided in the ratio

: 1 -

and points are joined to obtain another square. The process is continued indefinitely. Let a_n denote the length of side and A_n the area of the nth square.