one third the sum of 13 and a certain number is the same as one more than twice the number.Find out the number.
A
6
B
2
C
5
D
3
Correct Answer: 2
Let, the number x 1/3 (13 + x) = 2x + 1 বা, 13 + x = 6x + 3 বা, 6x - x = 13 - 3 বা, 5x = 10 so, x = 2