Question 5 - Past Year MCQ - Chapter 15 Class 10 Probability (Term 1)Last updated at Nov. 19, 2021 by Show
Question 5The probability that a number selected at random from the numbers 1, 2, 3, ....., 15 is a multiple of 4, is:(a) 4/15 (b) 2/15(c) 1/5 (d) 1/3
TranscriptQuestion 5 The probability that a number selected at random from the numbers 1, 2, 3, ....., 15 is a multiple of 4, is: (a) 4/15 (b) 2/15 (c) 1/5 (d) 1/3 Total numbers = 15 Multiples of 4 are… 4, 8, 12, 16, 20, 24, 28, 32, …. Number of multiples of 4 less than 15 = 3 Thus, P(getting a multiple of 4) = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑚𝑢𝑙𝑡𝑖𝑝𝑙𝑒𝑠 𝑜𝑓 4)/(𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟𝑠) = 3/15 = 𝟏/𝟓 So, the correct answer is (c) Open in App Solution Given numbers are 1,2,3,4,........., 15. Total number of possibilities = 15. Multiple of 4 are { 4,8,12} Number of favourable out comes = 3 Probability that a number selected at random from the numbers is a multiple of 4 =315=15 answer:- (c) 15Q. Mark the correct alternative in each of the following: The probability that a number selected at random from the numbers 1, 2, 3, ..., 15 is a multiple of 4, is (a) 415 (b) 215 (c) 15 (d) 13 [CBSE 2014] Advertisement Remove all ads Advertisement Remove all ads The probability that a number selected at random from the numbers 1, 2, 3, ..., 15 is a multiple of 4, is `(A)4/15` `(B)2/15` `(C)1/5` `(D)1/3`
Advertisement Remove all ads SolutionCorrect answer: C Concept: Basic Ideas of Probability Is there an error in this question or solution? Advertisement Remove all ads 2013-2014 (March) All India Set 2 Q 1PrevQ 2 APPEARS IN2013-2014 (March) All India Set 2 (with solutions) Q 1 | 1 mark Advertisement Remove all ads
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What is the probability that a number selected at random from 1 2 3 15?answer:- (c) 15.
What is the probability of getting a multiple of 3 from 1 to 20?Complete step-by-step answer:
Numbers on the card are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20. Now, let us find the probability of getting a multiple of 3. Multiple of 3 between 1 to 20 are 3, 6, 9, 12, 15, 18.
What is the probability that the selected number is a multiple of 3 and 4?Hence, the Probability of getting a number which is a multiple of 3 and 4 is 2/25.
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