First we find number of men , women and children . So :

6x + 5x + 2x = 39

==> 13x = 39

==> x = 3

Hence number of men , women and children are 18 , 15 and 6 respectively.

According to the question , pay is done according to work done in one day . Now it is given ,

Work done by child in 1 day = 1/3 of woman

Work done by woman in 1 day = 1/2 of man

Hence ,

18 * 6x + 15 * 3x + 6 * 1x = 1113

==> 108 x + 45x + 6x = 1113

==> 159 x = 1113

==> x = 1113 / 159

==> x = 7

**Hence required amount to be paid to each child for each day = Rs** **7 **