Chapter 3: Playing With Numbers Exercise 3.6 Q1. Find the H.C.F. of the following numbers: (a) 18, 48 (b) 30, 42 (c) 18, 60 (d) 27, 63 (e) 36, 84 (f) 34, 102 (g) 70, 105, 175 (h) 91, 112, 49 (i) 18, 54, 81 (j) 12, 45, 75 Answer. (a) Factors of 18 = 2 … Read more

Chapter 1: Knowing Your Numbers Exercise 1.1 Q1. Fill in the blanks: (a) 1 lakh = _______________ ten thousand (b) 1 million = _______________ hundred thousand (c) 1 crore = _______________ ten lakh (d) 1 crore = _______________ million (e) 1 million = _______________ lakh Answer. (a) 10 (b) 10 (c) 10 (d) 10 (e) 10 … Read more

Chapter 1: Knowing Your Numbers Exercise 1.2 Q1. A book exhibition was held for four days in a school. The number of tickets sold at the counter on the first, second, third and final day was respectively 1094, 1812, 2050 and 2751. Find the total number of tickets sold on all the four days. Answer. … Read more