Question

A box contains 50 discs which are numbered from 1 to 50. If one disc is drawn at

random from the box, find probability that it is a:

1 : a two digit number​

Answer 1

Answer:

1

Step-by-step explanation:

check buk for that nd then solve it

Answer 2

Answer:

Total number of discs are 50 which are numbered from 1 to 50.

(1) Two digit number less than 30 are:- 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29

Here favorable discs =20

∴ probability =

50

20

=

5

2

(ii) prime numbers between 1 to 50 are:-

2,3,5,7,11,13,17,19,23,29,31,37,41,43,47

Here favorable discs =15

∴ probability =

50

15

=

10

3

(iii) Numbers divisible by 3 between 1 to 50 are:-

3,6,9..............48

So, total number of favorable discs =16.

∴ probability =

50

16

=

25

8

Step-by-step explanation

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