At Oscar's fruit stall,
35 of the watermelons were red and the rest were yellow. He sold half of the total number of watermelons.
15 of the watermelons sold were yellow. 78 yellow watermelons were left. How many red watermelons did Oscar sell?
|
Red watermelons |
Yellow watermelons |
Total |
Before |
3 u |
2 u |
5 u |
Change |
- 2 u |
- 12 u |
- 212 u |
After |
1 u |
112 u |
212 u |
Number of watermelons sold
=
12 x 5 u
= 2
12 u
Number of yellow watermelons sold
=
15 x 2
12 u
=
12 u
Number of yellow watermelons left
= 1 -
12 u
= 1
12 u
1
12 u = 78
1 u
= 78 ÷ 1
12 = 78 x
23= 52
Number of red watermelons sold
= 2
12 u -
12 u
= 2 u
= 2 x 52
= 104
Answer(s): 104