Question
Download Solution PDFWhich of the following statements is not true for the set of whole numbers?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
Let assume that
a = 1
b = 2
c = 3
Option 1:
a + b = b + a
⇒ 1 + 2 = 3
⇒ 2 + 1 = 3
⇒ 3 = 3
Option 2:
a – b = b – a
⇒ 1 - 2 = -1
⇒ 2 - 1 = 1
⇒ -1 ≠ 1
Option 3:
a × b = b × a
⇒ 1 × 2 = 2
⇒ 2 × 1 = 2
⇒ 2 = 2
Option 4:
(a + b ) + c = a + (b + c)
⇒ (1 + 2) + 3 = 6
⇒ 1 + (2 + 3) = 6
⇒ 6 = 6
The correct option is 2 i.e. a – b = b – aLast updated on Apr 30, 2025
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