Share

From 25 Identical Cards, Numbered 1, 2, 3, 4, 5, ……, 24, 25: One Card is Drawn at Random. Find the Probability that the Number on the Card Drawn is a Multiple Of: 5 - ICSE Class 10 - Mathematics

ConceptType of Event - Complementry

Question

From 25 identical cards, numbered 1, 2, 3, 4, 5, ……, 24, 25: one card is drawn at random. Find the probability that the number on the card drawn is a multiple of:

5

Solution

There are 25 cards from which one card is drawn.

Total number of elementry event ==n(s)=25

From number 1 to 25,  there are 5 number which are multiple of 5 i.e. [5,10,15,20,25] Favourable number of event = n(E)=5

Probability of selecting cards with a multiple of 5=

(n(E))/(n(s))=5/25=1/5

Is there an error in this question or solution?

Video TutorialsVIEW ALL 

Solution From 25 Identical Cards, Numbered 1, 2, 3, 4, 5, ……, 24, 25: One Card is Drawn at Random. Find the Probability that the Number on the Card Drawn is a Multiple Of: 5 Concept: Type of Event - Complementry.
S