Question

Q1) The expression √16+√36 represents a

(a) rational number + irrational number
(b) irrational number + rational number
(c) rational number + rational number
(d) irrational number + irrational number

Answer 1

C

Explanation:

Rational numbers are those which can be expressed as a ratio of two integers. In other words, it means numbers which can be expressed as a fraction containing only whole numbers.

Whole numbers (integers), fixed-legnth decimals, and recurring decimals are all rational.

Irrational numbers are non-recurring, infinite decimals. For example, the value of π. Such numbers cannot be expressed as a ratio of two integers.

√16 = 4 and √36 = 6. All integers (whole numbers) are, by definition, rational, as they can be expressed as divisable by 1, such as 4/1 and 6/1 in the case of this question.