Class 10th || Exercise - 1.1 || Real Numbers || Chapter 1 || NCERT Solution of Exercise - 1.1

Class 10th || Chapter 1 || Real Numbers || Exercise - 1.1 NCERT Solution of Exercise - 1.1 Question 1 Use Euclid's division algorithm to find the HCF of: 1) 135 and 225 2) 196 and 38220 3) 867 and 255 Question 2 Show that any positive odd integer is of the form 6q + 1, or 6q + 3, or 6q + 5, where q is some integer. Question 3 An army contingent of 616 members is to march behind an army band of 32 members in a parade. The two groups are to march in the same number of columns. What is the maximum number of columns in which they can march? Question 4 Use Euclid's division lemma to show that the square of any positive integer is either of the form 3m or 3m + 1 for some integer m. Question 5 Use Euclid's division lemma to show that the cube of any positive integer is of the form 9m, 9m + 1, or 9m + 8.