Question

Monica and Ryan shared 18 cookies.Monica ate ¹/₆ of the cookies. Ryan ate ¹/₃ of the cookies. How many cookies were left

Answer 1

Dear student
$$\begin{gathered} \mathrm{Total}\mathrm{no}.\mathrm{of}\mathrm{cookies}=18 \\ \mathrm{Cookies}\mathrm{ate}\mathrm{by}\mathrm{Monica}=\frac{1}{6}\times 18=3 \\ \mathrm{Cookies}\mathrm{ate}\mathrm{by}\mathrm{Ryan}=\frac{1}{3}\times 18=6 \\ \mathrm{No}.\mathrm{of}\mathrm{cookies}\mathrm{left} \\ =\mathrm{Total}\mathrm{no}.\mathrm{of}\mathrm{cookies}-\mathrm{Cookies}\mathrm{ate}\mathrm{by}\mathrm{Monica}-\mathrm{Cookies}\mathrm{ate}\mathrm{by}\mathrm{Ryan} \\ =18-3-6 \\ =18-9 \\ =9 \end{gathered}$$
Regards