Misc

Question 1

A clock lost 2 minutes and 36 seconds in 78 days. How many seconds did it lose per day?

Answer 1

2 seconds per day

1. Convert to seconds = 156
2. Divide: total seconds lost by number of days = seconds lost per day
   156/78= 2
   Aka 2 seconds per day

Question 2

The cost of 150 feet of wire is $19.20. How much would 45 feet cost?

Answer 2

$5.76

Question 3

A train travels 25 feet in 1/3 second. In 4 seconds the train will have traveled ___ feet.

Answer 3

300 ft

Question 4

84 hours were spent training 6 employees. At this rate, it would take ___ hours to train an additional 5 employees.

Answer 4

70

Question 5

A car travelled 11.5 miles in 15 minutes. How many miles per hour was it traveling?

Answer 5

46

Question 6

Jons restaurant has 120 tables, but 30% of the tables are reserved. How many tables are available?

Answer 6

84

Question 7

To make 20 pancakes, you need 2 eggs. How many eggs are needed to make 100 pancakes?

Answer 7

10

Eggs/pancakes = eggs/pancakes
Or x/100 = 2/20
Multiply both sides by 100
X = 200/20
Aka x = 10

Question 8

For Xmas, ben gave his two sons $2000, which he divided between them in a ratio of 2:3. How much did the son receiving the larger portion get?

Answer 8

$1200

If ratio is 2:3, then the portion for the son receiving the larger amount of the $2000 is 3/(2+3) or 3/5. To calculate larger portion multiply 3/5*2000= $1200

Or:
1- add ratio together (=5)
2- divide $2000/5 = $400 (in each “unit”)
3- multiply by 3 (larger ratio in this case)= 3*400=$1200