Solve all your doubts with Teachoo Black (new monthly pack available now!)
Ex 15.1, 10 - Chapter 15 Class 10 Probability (Term 1)
Last updated at Dec. 8, 2016 by Teachoo
Are you in school? Do you love Teachoo?
We would love to talk to you! Please fill this form so that we can contact you
Ex 15.1
Ex 15.1, 1
Ex 15.1, 2 Important
Ex 15.1, 3
Ex 15.1, 4 (MCQ) Important
Ex 15.1, 5
Ex 15.1, 6 Important
Ex 15.1, 7
Ex 15.1, 8
Ex 15.1, 9
Ex 15.1, 10 You are here
Ex 15.1, 11
Ex 15.1, 12 Important
Ex 15.1, 13
Ex 15.1, 14 Important
Ex 15.1, 15 Important
Ex 15.1, 16
Ex 15.1, 17
Ex 15.1, 18 Important
Ex 15.1, 19 Important
Ex 15.1, 20* (Optional) Important
Ex 15.1, 21
Ex 15.1, 22 Important
Ex 15.1, 23
Ex 15.1, 24 Important
Ex 15.1, 25 (i) Important
Ex 15.1, 25 (ii)
Chapter 15 Class 10 Probability
Serial order wise
Transcript
Ex15.1, 10 A piggy bank contains hundred 50 p coins, fifty Rs 1 coins, twenty Rs 2 coins and ten Rs 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin will be a 50 p coin? Total number of coins in a piggy bank = 100 + 50 + 20 + 10 = 180 Number of 50 p coins = 100 Probability of getting a 50 p coin = ( 50 )/( ) = 100/180 = 5/9 Ex15.1, 10 A piggy bank contains hundred 50 p coins, fifty Rs 1 coins, twenty Rs 2 coins and ten Rs 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (ii) will not be a 5 coin? Total number of coins in a piggy bank = 180 Number of 5 coins = 10 P(not getting a 5 coin) = 1 P(getting a 5 coin) P(getting a 5 coin) = ( 5 )/( ) = 10/180 = 1/18 P(not getting a 5 coin) = 1 P(getting a 5 coin) = 1 1/18 = 17/18
