STUCK ON HOMEWORK?

Question

Question

P6 Mathematics

Question post on Mon, 15/05/2017 8:12am

sam has 30 nuggets and fishball at first. he exchanged all his nugget for fishball. he has 48 fishball after changing every 1 nugget for 2 fishball. how many fishball does he has at first?

Answer

BigDevil · Answer 1 · Post on Mon, 15/05/2017 9:38am

Let’s say Sam has 30 nuggets and 0 fishball.

	Nugget	Fishball	Total
At first	30	0	30
Exchange 1 nugget	29	2	31
Exchange 2 nuggets	28	4	32

As you can see, every exchange of 1 nugget for 2 fishballs increases the total by 1.

So, from 30 to 48, she has a gain of (48 – 30) = 18 items.

These additional 18 cam from exchanging 18 nuggets to fishballs.

Number of fishballs at first -> (30 – 18) = 12

BigDevil · Answer 2 · Post on Mon, 15/05/2017 9:40am

Check

	Nugget	Fishball	Total
At first	18	12	30
Exchange all nuggets	0	12 + 36	48

Checked

siglapmath · Answer 3 · Post on Tue, 16/05/2017 3:54am

siglapmath Post on Tue, 16/05/2017 3:54am

siglapmath · Answer 4 · Post on Tue, 16/05/2017 3:54am

siglapmath

Post on Tue, 16/05/2017 3:54am

alfretztay · Answer 5 · Post on Mon, 15/05/2017 9:43am

alfretztay Post on Mon, 15/05/2017 9:43am

48 – 30 = 18 (nuggets)

30 – 18 = 12

Ans : 12 fishballs.