Question

A card is drawn at random from a pack of 100 cards

numbered 1 to 100. The probability of drawing a number,

which is a square, is-

• A. 1/5
• B. 2/5
• C. 1/10
• D. None of these

Answer 1

Answer: (C)

1/10

Answer 2

Total number of ways = ¹⁰⁰C₁; favourable numbers are

= 1², 2², ….10²; Therefore favourable ways = 10

P = $\frac { 10 } { 100 }$= $\frac { 1 } { 10 }$