Question

1. Jill is playing cards with her friend when she draws a card from a pack of 20 cards numbered from 1 to 20. What is the probability of drawing a number that is square?

Answer 1

Answer:

$\frac{1}{5}$

1, 4, 9, 16 are all perfect squares

so

$\frac{1}{5}$

Answer 2

Given :- Jill is playing cards with her friend when she draws a card from a pack of 20 cards numbered from 1 to 20. What is the probability of drawing a number that is square ?

Answer :-

we have,

→ from 1 to 20 square numbers are 1, 4, 9 and 16 = Total favourable outcomes = 4

and,

→ from 1 to 20 total outcomes = 20

then,

→ Required probability = Total favourable outcomes / Total number of outcomes = 4/20 = 1/5 (Ans.)

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