Let the number of persons = x. Total money = Rs 9,000 Money divided equally among persons =9,
000
x
Number of persons when 20 persons are more = x + 20 persons Each person gets Rs 160 less According to the statement,
9000
x
−160=
9000
x+20
9000x+180000−160x2−3200x=9000x x2+45x−25x−1125=0 (x+45)(x−25)=0 x + 45 = 0, is rejected because it is negative x - 25 = 0 x = 25 The number of persons equal to 25.