NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 1: Number System - Encircle Odd OnesQuestion 30
Class 7 - Mathematics - Unit 1: Number System - Encircle Odd Ones
Question. 30
(a) (–1) × (–1)
(b) (–1) × (–1) × (–1)
(c) (–1) × (–1) × (–1) × (–1)
(d) (–1) × (–1) × (–1) × (–1) × (–1)
(a)
(–1) × (–1)
(b)
(–1) × (–1) × (–1)
(c)
(–1) × (–1) × (–1) × (–1)
(d)
(–1) × (–1) × (–1) × (–1) × (–1)
Detailed Answer with Explanation:
(a)=+1, (c)=+1, (d)=–1, (b)=–1. Since most are positive, (b) is the odd one.