Problem 1 :
Callie buys 4 packages of cookies. Each package has 6 cookies. How many cookies does Callie buy?
Solution :
There are 4 packages, each of which has 6 cookies.
Then, number of cookies Callie buys :
= 4 x 6
= 24
Problem 2 :
Lily bought 5 packs of light bulbs. Each pack has 7 light bulbs. How many light bulbs did Lily buy?
Solution :
There were 5 packs, each of which had 7 light bulbs.
Then, number of light bulbs Lily bought :
= 5 x 7
= 35
Problem 3 :
Rick’s grandmother pledged $0.50 for every mile Rick walked in his walk-a-thon. Rick walked 9 miles. How much does his grandmother owe?
Solution :
Rick’s grandmother pledged $0.50 for every mile.
Rick walked 9 miles.
Then, amount of money for 9 miles is
= 9 x 0.50
= 4.50
Rick's grandmother owes $4.50.
Problem 4 :
Michael made 10 two-point baskets and 2 three-point baskets in Friday’s basketball game. He did not score any other points. How many points did he score in all?
Solution :
Points scored in 10 two-point baskets :
= 10 x 2
= 20
Points scored in 2 three-point baskets :
= 2 x 3
= 6
Total points scored in 10 two-point baskets and 2 three-point baskets :
= 20 + 6
= 26
Problem 5 :
Jack's speed is 57 miles per hour. If he keeps going at the same rate, find the distance traveled by Jack in 6 hours.
Solution :
Jack's speed is 57 miles per hour.
That is, distance covered in one hour is 57 miles.
Then, the distance covered by Jack in 6 hours is
= 6 x 57
= 342 miles
Problem 6 :
Raul’s bedroom is 4 yards long. How many inches long is the bedroom?
Solution :
1 yard = 36 inches
Then, 4 yards is
= 4 x 36
= 144 inches
Raul's bedroom is 144 inches long.
Problem 7 :
If 1 lb. of sea food costs $18.50, find the cost of 5 lbs. of sea food.
Solution :
Given : Cost of 1 lb. is $18.50.
Then, cost of 5 lbs. :
= 5 x 18.50
= 92.50
Problem 8 :
Jeff burns 500 calories per hour bicycling. At the same rate, how many calories can he burn in 3 hours?
Solution :
Given : Jeff burns 500 calories per hour bicycling.
That is, in Jeff burns 500 calories in one hour.
Then, Amount of calories Jeff can burn in 3 hours is
= 3 x 500
= 1500
Problem 9 :
A box of pencils contains 24 pencils and a box of pens contains 35 pens. Justin bought 2.5 boxes of pencils and 3.8 boxes of pens. Find the total number of items Justin bought.
Solution :
Total number of items Justin bought :
= 2.5 x 24 + 3.8 x 35
= 60 + 133
= 193
Problem 10 :
In a word document. Jessica types 12 lines in 20 minutes. At the same rate, how many lines will she type in one hour?
Solution :
Given : Jessica types 12 lines in 20 minutes.
Since 1 hour = 60 minutes, there are three 20-minutes sessions in 1 hour.
So, number of lines typed by Jessica in one hour :
= 3 x 12
= 36 lines
Problem 11 :
The distance from city A to city B is 53 miles. The distance from city B to city C is three times of the distance from city A to city B. Find the distance from city A to city C.
Solution :
Distance from city A to C :
= AB + BC
Given : The distance from city B to city C is three times of the distance from city A to city B.
= AB + 2(AB)
The distance from city A to city B is 53 miles.
= 53 + 2(53)
= 53 + 106
= 159 miles
Problem 12 :
Mr. James has invested $250 in stock A. In stock B, he has invested 2.5 times of what he invested in stock A. Find the total investment made by Mr. James.
Solution :
Total investment made by Mr. James :
= Investment in stock A + Investment in stock B
= Investment in stock A + 2.5(Investment in stock A)
Given : Mr. James has invested $250 in stock A.
= 250 + 2.5(250)
= 250 + 625
= $875
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