Question

If half bag of rice is exchanged with 2 tokens, then 4 bags of rice can be exchanged with _____ .

• A. 12 tokens
• B. 16 tokens
• C. 15 tokens
• D. 10 tokens

Answer 1

The correct option is B 16 tokens

Half bag of rice is exchanged with 2 tokens.

That is,
$\frac{1}{2}bag=2tokens4bags=(\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2})bags=8\times \frac{1}{2}bags=8\times 2tokens=16tokens$