Question

Mark the correct alternative in the following question:

The product of x and y is decreased by 4 is written as

(a) 4 $-$ xy (b) x(y $-$ 4) (c) xy $-$ 4 (d) xy + 4

Answer 1

$$\begin{gathered} \mathrm{Since},\mathrm{the}\mathrm{product}\mathrm{of}x\mathrm{and}y=xy \\ \mathrm{So},\mathrm{the}\mathrm{expression}\mathrm{when}\mathrm{the}\mathrm{product}\mathrm{is}\mathrm{decreased}\mathrm{by}4\mathrm{is}\mathrm{written}\mathrm{as}xy-4 \end{gathered}$$

Hence, the correct alternative is option (c).