Saved Bookmarks
| 1. |
Find which of the following numbers are divisible by 3 :(i) 221(ii) 543(iii) 28492(iv) 92349 |
|
Answer» (i) 221 Sum of digits = 2 + 2 + 1 = 5 Which is not divisible by 3 221 is not divisible by 3. (ii) 543 Sum of digits = 5 + 4 + 3 = 12 Which is divisible by 3 543 is divisible by 3 (iii) 28492 The given number = 28492 Sum of its digits = 2 +8+4 + 9 + 2 = 25 Which is not divisible by 3 28492 is divisible by 3. (iv) 92349 The given number = 92349 Sum of its digits = 0 + 2 + 3 + 4 + 9 = 27 Which is divisible by 3 92349 is divisible by 3. |
|