Question

How many cookies, in total, did Sohan eat?

• A. 30
• B. 12
• C. 15
• D. 6

Answer 1

The correct option is C

15

The situation is shown in the following table:
$\begin{array}{cccccccc}& & \text{Who ate}& \text{how}& \text{many}& \text{cookies}& \text{Not eaten}& \text{Total}\\ & & \text{Shyam}& \text{Sundar}& \text{Sohan}& \text{Sudeep}& & \\ \text{Who entered?}& \text{Sudeep}& 3& 3& 3& 3& -& 12\\ & \text{Sohan}& 12& 12& 12& -& 12& 48\\ & \text{Sundar}& 24& 24& -& -& (24\times 2)=48& 96\\ & \text{Shyam}& 32& -& -& -& (32\times 3)=96& 128\\ & \text{Total}& 71& 39& 15& 3& -& -\end{array}$

We can see that Sohan ate 15 cookies in all.