Question

24000 blood donors where registered with Red Cross at Kolkata the number of donors increased @ 5% every 6 months find the time period at the end of which the total number of blood donors becomes 27783

Answer 1

here is your answer ☺☺☺☺☺☺
$dear \: friend$

hlooo it's very simple I solve in this pic..............

it's main formula use A = p(1+r/100)"n

OK here is your answer OK

in this
$attachment$

Answer 2

that's is ur ans plss mark me as a brainlist ans