Question

Roby buys 6 carpets for $\$$56 and 4 mini candle holders for $\$$82. Estimate the difference between the cost of one carpet and one candle holder.
(Round off the total amount of each item to the nearest tens.)

• A. $\$40$
• B. $\$10$
• C. $\$80$
• D. $\$60$

Answer 1

The correct option is B $\$10$

56 can be rounded off to 60
82 can be rounded off to 80

$\text{Cost of one carpet}=60÷6=\$10$

$\text{Cost of one candle holder}=80÷4=\$20$

Difference = Cost of one candle holder - Cost of one carpet
$i.e.\$20-\$10=\$10$