Computing Unit Prices to Find the Better Buy Online Quiz

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Q 1 - A fast food joint sells 5 boxes of chicken nuggets for $37.40. Another fast food joint sells 4 boxes of chicken fingers for $28.48. Which food has a cheaper unit price?

Answer : D

Explanation

Step 1:

Unit price of chicken nuggets = $$\frac{37.40}{5}$ = $$7.48$

Unit price of chicken fingers = $$\frac{28.48}{4}$ = $$7.12$

Step 2:

As $$7.12$ < $$7.48$, chicken fingers have the cheaper unit price.

Q 2 - In January, a store sold 3 scarves for $14.70. In March, it sold 5 scarves for $23.90. In which month did a scarf cost the least?

Answer : B

Explanation

Step 1:

Unit price of scarves in January = $$\frac{14.70}{3}$ = $$4.90$

Unit price of scarves in March = $$\frac{23.90}{5}$ = $$4.78$

Step 2:

As $$4.78$ < $$4.90$, scarves have cheaper unit price in March.

Q 3 - At a farming supply store 6 pounds of ‘A’ seeds cost $161.40 and 5 pounds of ‘B’ seeds cost $129.75 Which seeds have a lower unit price?

Answer : A

Explanation

Step 1:

Unit price of ‘A’ seeds = $$\frac{161.40}{6}$ = $$26.90$

Unit price of ‘B’ seeds = $$\frac{129.75}{5}$ = $$25.95$

Step 2:

As $$25.95$ < $$26.90$, ‘B’ seeds have cheaper unit price.

Q 4 - At a book exhibition, vendor 1 was selling a 4 books set for $39.20. Vendor 2 was selling a 6 books set for $52.98. Which vendor was selling at a higher unit price?

Answer : C

Explanation

Step 1:

Unit price of vendor 1 books = $$\frac{39.20}{4}$ = $$9.80$

Unit price of vendor 2 books = $$\frac{52.98}{6}$ = $$8.83$

Step 2:

As $$9.80$ > $$8.83$, unit price of vendor 1 books is higher.

Q 5 - At a store Brand P potato chips were $19.50 for 5 bags. Brand Q potato chips were $13.05 for 3 bags. Which brand has the cheaper price?

Answer : B

Explanation

Step 1:

Unit price of brand P chips = $$\frac{19.50}{5}$ = $$3.90$

Unit price of brand Q chips = $$\frac{13.05}{3}$ = $$4.35$

Step 2:

Since $$3.90$ < $$4.35$, brand P chips have a cheaper unit price.

Q 6 - A store had 7 white chairs for $142.94 or 5 black chairs for $101.90. Which color chair has a lower unit price?

Answer : C

Explanation

Step 1:

Unit price of white chairs = $$\frac{142.94}{7}$ = $$20.42$

Unit price of black chairs = $$\frac{101.90}{5}$ = $$20.38$

Step 2:

As $$20.38$ < $$20.42$, black chairs have a lower unit price.

Q 7 - At a store pork sold at $7.34 for 2 pounds and chicken sold at $6.75 for 5 pounds, which has a higher unit price?

Answer : A

Explanation

Step 1:

Unit price of pork = $$\frac{7.34}{2}$ = $$3.67$ per pound

Unit price of chicken = $$\frac{6.75}{5}$ = $$1.35$ per pound.

Step 2:

As $$3.67$ > $$1.35$, unit price of pork is higher.

Q 8 - An ice company charged $5.67 for 7 bags of ice. If a convenience store sold 6 bags of ice for $5.46, which is a better buy?

Answer : D

Explanation

Step 1:

Unit price charged by ice company = $$\frac{5.67}{7}$ = $$0.81$.

Unit price charged by store = $$\frac{5.46}{6}$ = $$0.91$

Step 2:

Since $$0.81$ < $$0.91$, ice company purchase is the better buy.

Q 9 - A shoe store was having a sale where 2 pairs of Brand A shoes cost $21.90 and 3 pairs of Brand B shoes cost $33.45. Which brand is the better buy?