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
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
