Mathematics Challenge

Calculate the sum of -5/6 and 2/3

• -1/6

• 1/2

• -1/2

• 3/4

If y is directly proportional to x, and y = 15 when x = 5, find y when x = 8

• 24

• 18

• 12

• 20

Simplify the expression: 3(2x - 5) + 4(3x + 2)

• 18x - 5

• 6x + 7

• 12x - 3

• 18x - 7

Solve the equation: 2(3x - 4) = 10

• x = 3

• x = 4

• x = 5

• x = 2

What is the probability of rolling a prime number on a fair six-sided die?

• 1/4

• 1/2

• 1/5

• 1/3

Find the mean of the following data set: 12, 15, 18, 21, 24

• 22

• 20

• 25

• 18

Evaluate the expression: 5x - 3y, given x = 4 and y = 2

• 10

• 14

• 12

• 8

If 3/4 of a number is 15, what is the number?

• 10

• 30

• 25

• 20

If a:b = 2:3 and b:c = 4:5, find a:b:c

• 12:24:5

• 8:12:5

• 2:4:3

• 24:12:5

Solve the equation: 4(x + 3) = 32

• 4(x + 3) = 40

• hjson

• 4(x + 3) = 16

• 4(x + 3) = 28