Question 3 - MCQ questions (1 mark each) - Chapter 2 Class 11 - Encoding Schemes and Number System

The octal equivalent of 15 ₁₀ is

(a) 15 ₈

(b) 17 ₈

(c) 19 ₈

(d) 21 ₈

Answer:

15 ₁₀ is a decimal number. 

To find the octal equivalent of a decimal number:

• Repeatedly divide the decimal number by 8 until the quotient becomes less than 8 and record all the remainders. 
• The remainders should be written bottom to upwards to get the octal equivalent of the decimal number.

Therefore, 15 ₁₀ = 17 ₈

So, the correct answer is (b).