One packet of cement weighing 70 oz costs the same as four packets of cement weighing 1 lb. Which is the better deal in terms of quantity? (1 lb = 16 oz)

The correct option is D One packet of cement weighing 70 oz
Given:
Cost of one packet of cement weighing 70 oz = Cost of four packets of cement weighing1 lb

• 1 lb = 16 oz
• To get the quantity of cement in ounces, we multiply 1 lb with 16 (as 1 lb = 16 oz).
• Number of ounces in four packets of cement weighing 1 pound

$=4lb=4\times 16oz$
$=64oz$

• We get 70 oz and 64 oz at the same price.
• 70 oz is greater than 64 oz.
• Thus, getting one packet of cement weighing 70 oz is the better deal in terms of quantity as compared to getting four packets of cement weighing 1 lb $(4\times 16=64oz).$

Hence, B is the correct option.