A box contains cards numbered 6 to 50. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square like 4, 9….is

(a) 1/45    (b) 2/15    (c) 4/45    (d) 1/9

 

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  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

Transcript

Question 1 A box contains cards numbered 6 to 50. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square like 4, 9….is (a) 1/45 (b) 1/15 (c) 4/45 (d) 1/9 Total number of cards = 50 − 6 + 1 = 45 Perfect square numbers are… 4, 9, 16, 25, 36, 49, 64, 81, 100, … Number of perfect square b/w 6 to 50 = 5

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.