p + (-13) = 8 p = 21
If one of the pages is numbered p, the other is p+1. So p*(p+1) = 420 That is, p2 + p - 420 = 0 which factorises as (p - 20)*(p + 21) = 0 That implies that p = 20 or p = -21. Assuming that pages do not have negative numbers, p = 20 and then the other page is p+1 = 21.
p = 4
p>9
If p = 7 then 3p must equal 21. So 21 - 25 = -4 and -4 divided by 2 = -2
p + 21.
If p is 13 then 13-21 = -8
how to solve 7 + p = p +7
p = 7 or p = -1.5
P. P. Devaraj was born on 1929-02-21.
Let P = 0,212121,,,, Hence 100P = 21.212121.... Subtract 99P = 21 (NB The repeating decimals subtract to zero. P = 21/99 Cancel down by '3' P = 7/33 The answer!!!!
p + (-13) = 8 p = 21
If one of the pages is numbered p, the other is p+1. So p*(p+1) = 420 That is, p2 + p - 420 = 0 which factorises as (p - 20)*(p + 21) = 0 That implies that p = 20 or p = -21. Assuming that pages do not have negative numbers, p = 20 and then the other page is p+1 = 21.
P. Jeevanandham was born on 1907-08-21.
P. Bhaskaran was born on 1924-04-21.
A. P. Mitra was born on 1927-02-21.
p = 4