NCERT Solutions for Class 7 Mathematics Chapter 8
Important NCERT Questions
Class vii Math Chapter 8 Comparing Quantities Exercise 8.2
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 4
Find: (a) 15% of 250 (b) 1% of 1 hour (c) 20% of ₹2500 (d) 75% of 1 kg
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(a) 15% of 250 = 15/100 x 250 = 15 x 2.5 = 37.5
(b) 1% of 1 hours = 1% of 60 minutes = 1% of (60 x 60) seconds
= 1/100 x 60 x 60 = 6 x 6 = 36 seconds
(c) 20% of ₹2500 = 20/100 x 2500 = 20 x 25 = ₹ 500
(d) 75% of 1 kg = 75% of 1000 g = 75/100 x 1000 = 750g = 0.750 kg
Class 7 Maths Chapter 8 Exercise 8.2