Answer: The greatest number of necklaces she can make = 6 and n. of beads of each type in each necklaces = 4 and 5 respectively .
Step-by-step explanation:
We have given that 
Number of jade beads = 24
Number of teak beads = 30
The greatest number of necklaces she can make = H.C.F of 24 and 30 
 = 6
 and,
 The number of jade beads in each necklace = 

 = 4
The number of teak beads in each necklaces = 
 
 
 = 5