BUNDLED ANSWERS GRADED A+
⩥ The sum of two numbers is 70. One number is 8 more than the other.
What's the smaller number?
(a) 31
(b) 33
(c) 35
(d) 36. Answer: A. x + x + 8 = 70, solve for x.
x = 31
⩥ A sales manager buys antacid in bottles the gross. If he goes through 3
bottles antacid everyday, how long will the gross last?
(a) 144 days
(b) 3 days
(c) 20 days
(d) 48 days. Answer: D. 144 bottles in a gross, and 144 ÷ 3 (bottles per
day) = 48 days.
⩥ Jenny's test grades are 93,89, 96, and 98. If she wishes to raise her
average to 95, what does she need to score on her next test?
(a) 100
(b) 99
, (c) 97
(d) 95. Answer: B. x = the unknown score. (93 + 89 + 96 + 98 + x) ÷ 5
or (376 + x) ÷ 5. Now solve for x
⩥ A waitress earns an average of 12% of the cost of the food she serves.
If she serves $375 worth of food in one evening, how much money in
tips will she earn on average?
(a) $37
(b) $45
(c) $42
(d) $420. Answer: B. Multiply the amount spent on drinks, $375, by
12% (or 0.12) to determine the amount of tips:
$375 × 0.12 = $45
⩥ How many square feet of carpeting are needed to carpet a 12-foot ×
12-foot room?
(a) 24
(b) 120
(c) 48
(d) 144. Answer: D. To determine square footage multiply length by
width
12 × 12 = 144 sq feet