plz help with complicated ratios Mr patels Twins and Triplets

Question

twins and triplets are common in Mr Patel family. if Mrs Patel divide a packet of sweets among her 6 children arcoding to age using the ratios below calculate how many pair of twins and sets of triplets she has(not all the ratios are written in decending order of their childrens ages) ;a)12:9:7:6:4:1 b)12:9:8:4:3 c)8:6:6:3:8:1 d)13:11:5:5:5:2 e)3:9:3:9:3:9

Answer 1

12+9+7+6+4+1=39

12/39=0.30769230769231

9/39=0.23076923076923

7/39=0.17948717948718

6/39=0.15384615384615

4/39=0.1025641025641

1/39=0.02564102564103

Answer 2

12:9:7:6:4:1=39÷6=6

Answer 3

In (a) all the ratios are different so there are no twins or triplets.

In (b) there are only five ratios.

In (c) there are 4 distinct ratios, implying 2 pairs of twins and 2 other children who are not twins.

In (d) there are 4 distinct ratios, implying 1 set of triplets and 3 children who are neither twins nor triplets.

In (e) there are 2 distinct ratios, implying 2 sets of triplets and no other children.