Question

There is a discount of $\$\frac{1}{6}$ on each type of book.

After discount, the combined cost of both the books is .

• A. $\$7\frac{5}{6}$
• B. $\$5\frac{1}{6}$
• C. $\$6\frac{2}{6}$
• D. $\$8\frac{4}{6}$

Answer 1

The correct option is D $\$8\frac{4}{6}$

Calculate the total cost of both the books after discount.

Cost of Science Fiction book = $\$5\frac{4}{6}$

Cost of Abacus book = $\$3\frac{2}{6}$

Discount on each book = $\$\frac{1}{6}$

Combined cost of both the books:

$(5\frac{4}{6}-\frac{1}{6})+(3\frac{2}{6}-\frac{1}{6})$

$=(5+\frac{4}{6}-\frac{1}{6})+(3+\frac{2}{6}-\frac{1}{6})$

$=(5+\frac{3}{6})+(3+\frac{1}{6})$

$=5+3+\frac{3}{6}+\frac{1}{6}$

$=8+\frac{4}{6}$

$=8\frac{4}{6}$

∴ The total cost of both the books is $\$8\frac{4}{6}$.