Question

Mr Lok has a total of 320 cups and jars at first. After 1/3 of the cups and 1/2 of the jars were sold, there were as 4/5 as many cups as jars left. What was the total number of cups and jars sold?

Answer 1

That last part we can ignore, we can just use the fractions in the first part of the information.

1/3 of 320 cups is 320 x 1/3 = 320/3 = 106 or 107 cups

1/2 of 320 jars is 320 x 1/2 = 320/2 = 160 jars

Hope this helps!

Answer 2

c + j = 320 or j = 320 - c
2/3 c = (4/5)(1/2 j) = 2/5 j

10 c = 6 j = 6 (320-c)
10 c = 1920- 6 c
16 c = 1920
c = 120
then j = 200
120 / 3 = 40 cups sold
100 jars sold
140 objects sold

Answer 3

"........ total of 320 cups and jars ...."
Is indeed a bit ambiguous.

Answer 4

Anonymous is correct.