I have to transport entry in tally.
In a school, there are 1000 students, out of which 430 are girls. It is known that out of
430, 10% of the girls study in class XII. What is the probability that a student chosen
randomly studies in Class XII given that the chosen student is a girl?
Prove that if a is an odd integers than a2+(a+2)2(a+4)2+1 is divisible by 12