They have 56 sweets altogether.
n= the number of sweets Nurul has
s= the number of sweets Sam has
r= the number of sweets Rebecca has
From the problem, we can say the
Similarly, we can also say the
Substitute and solve for s:
Finally, find the number of sweets Rebecca has. Rebecca has a 6:3 ratio in sweets compared to Sam. 6:3 simplified is 2:1 so Rebcca has 2 times as many sweets as Sam.
So, the total number of sweets is all the sweets of every person combined or in other words:
Total number of sweets= n+s+r
They have 56 sweets altogether. I hope this helps!