ACT practice

A certain task has 3 steps -- A, B, and C -- that must be performed in order, one after the next, with no break in between. If steps A and B together take a total of 12 minutes, steps B and C take a total of 20 minutes, and the entire task takes a total of 28 minutes, then how many minutes are required to perform step B only? 

• 2
• 4
• 8 
• 16

Tags

CCSS.8.EE.C.7B

Fifteen passengers agree to divide evenly the cost of renting a bus for a trip. If all but seven of the passengers have paid their share, and a total of $177.60 has been collected, what is the total cost of renting the bus? 

• $246.15
• $333.00
• $828.80
• $1,555.40

Tags

CCSS.6.NS.B.3

For a party, Irene buys plastic spoons and forks. The store sells one box of spoons for $8 and one box of forks for $10. Irene buys a total of 12 boxes of utensils for $104. How many boxes of spoons did Irene buy?

• 7
• 8
• 9
• 10

Tags

CCSS.8.EE.C.8C

The square of a positive number minus the number equals 72. What is the value of the number?

• 10
• 9
• 8
• 7

Tags

CCSS.8.EE.A.2

The equation √x + √(x - 44) = 18 is true for what real value of x ?

• 169
• 144
• 121
• 100

What is the smallest number divisible by 3, 4, an 5? 

• 12
• 15
• 20
• 60

What is the difference between the least common multiple and the greatest common factor of 12 and 16?

• 8

• 40

• 44

• 188

• 184

Set A contains all the distinct prime factors of 16. How many numbers are in set A?

• 0

• 1

• 2

• 4

• 16

How many times greater is 4,789, rounded to the nearest hundred, than 149, rounded to the nearest hundred?

• 24

• 25

• 47

• 48

• 50

If n + n is even and n × n is odd, which could be the value of n?

• -6

• -2

• 12

• 15

• 18

Tags

CCSS.3.OA.D.9