Question

x is defined as 40% of 40.

If y=$x^2+5x+8$ , find the value of y.

• A. 324
• B. 344
• C. 350
• D. 374

Answer 1

The correct option is B

344

40% of 40 = $\frac{40}{100}\times$100 = 16

$x^2$ = 16$\times$16 = 256

5$x$ = 16 $\times$ 5 = 80

$\therefore$ y = 256 + 80 + 8 = 344