Source: Assesment
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Question
Answer
SAHMom
Wendy: Left 2u Gave away 2u+8
Zhangyi: Left u Gave away 0.5 (2u+8) = u+4
Total at first = 120 = 2u+2u+8+u+u+4 –> …… –> u = 18
Zhanyi at first –> u + u + 4 = 18+18+4 = 40 cupcakes#
Khong Pek Mao
This is a Matrix question.
| Give | Left | Total | |
| Wendy | 2u | 2u – 8 | 4u – 8 |
| Zhangyi | 1u | 1u – 4 | 2u – 4 |
| Total | 6u – 12 |
6u – 12 = 120
6u = 120 + 12 = 132
1u = 132 ÷ 6 = 22
2u = 22 ×2 = 44
44 – 4 = 40
Priskhipo
6 units –> 120 – 3 x 4 = 108
2 units –> 108 / 3 = 36
36 + 4 = 40
Zhangyi had 40 cupcakes at first.