The probability that a number selected at random from the first 100 natural numbers is a composite number is ?

Question

নিচের অপশন গুলা দেখুন

• 3/2
• 34/7
• 2/3
• 1/2

Answer 1

সঠিক উত্তর হচ্ছে: op3/2

ব্যাখ্যা:

The number of exhaustive events = 100 C₁ = 100.

We have 25 primes from 1 to 100.

Number of favourable cases are 75.

Required probability = 75/50 = 3/2.