Solutions For NCERT Class 9 Mathematics Chapter 1 – NUMBER SYSTEMS – Exercise 1.3
exercise 1.3
Question 1. Write the following in decimal form and say what kind of decimal expansion each
has :
(i) 36/100 (ii) 1/11 (iii) 1/48 (iv) 3/13 (v) 2/11 (vi) 329/400
Solution:
(i) 36/100
=0.36
(ii)1/11
=0.9
(iii)1/48
Question 2. You know that 1/7= 0.142857 . Can you predict what the decimal expansions of 2
7
,
3
7
,
4
7
,
5
7
,
6
7
are, without actually doing the long division? If so, how?
[Hint : Study the remainders while finding the value of
1
7
carefully.]
