EXERCISE NO. 2.2, CHAPTER 2: NUMBERS AND SEQUENCES, SSLC 10TH STANDARD Tamil Nadu NEW SYLLABUS. 2019 - 2020.

SSLC 10TH STANDARD Tamil Nadu NEW SYLLABUS. 2019 - 2020.

CHAPTER 2: NUMBERS AND SEQUENCES

EXERCISE NO. 2.2

1. For what values of natural number n, 4n can end  with the digit 6? Solution

2. If m, n are natural numbers, for what values of m, does 2n x 5m ends in 5? Solution

3. Find the HCF of 252525 and 363636. Solution

4. If 13824 = 2a ×3b then find a and b. Solution

5. Solution

6. Find the LCM and HCF of 408 and 170 by applying the fundamental theorem of arithmetic. Solution

7. Find the greatest number consisting of 6 digits which is exactly divisible by 24,15,36? Solution

8. What is the smallest number that when divided by three numbers such as 35, 56 and 91 leaves remainder 7 in each case? Solution

9. Find the least number that is divisible by the first ten natural numbers. Solution