Question

Answer question number C
For hint- answer is 56cm
I think it is wrong can you explain me

Answer 1

Answer:

your hint is wrong because from 1 to 10 natural numbers there are only four primes

Answer 2

The first ten natural numbers are 1,2,3,4,5,6,7,8,9,10

The prime numbers from the first ten natural numbers are 2,3,5,7

Probability of the number being prime = $\frac{number of favourable outcomes}{Total number of outcomes}$

                                                                = $\frac{4}{10}$

                                                                =  $\frac{2}{5}$

HOPE IT HELPS !!