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oLahav’s Tests

Math SATs- Basic Algebra

A test by Oren Lahav.

Test Questions

Question

Solve for x and y, if 5x+2y=14

and

Photo

Answers

Correct	Answer Text
	x=2, y=2
	x=3, y=-1
	x=1, y=-2
	x=0, y=2
	x=1, y=3

Question

Say I have a bag filled with 12 marbles- 3 are blue, 4 are orange and 5 are green. Sadly, I'm colour-blind, so how many marbles should I pull before I'm absolutely sure I have one of each colour?

Answers

Correct	Answer Text
	9
	12
	10
	8
	3

Question

Say Alex has 7 apples less than Barbara, and Barbara has 2 more apples than Casy, but Casy has 23 apples. How many apples does Alex have?

Answers

Correct	Answer Text
	16
	23
	17
	12
	18

Question

What is the quotient-remainder form of 187/49?

Answers

Correct	Answer Text
	3
	3.816
	187=2(49)+89
	3.817
	187=3(49)+40

Question

Solve: $\frac{(x^3) * (5x)}{x^2}=20$

Answers

Correct	Answer Text
	x=2
	x=4
	No such answer
	x=+/-2
	x=0

Question

What is the result of: $\frac{1}{2}+\frac{5}{6} -\frac{4}{9}$ ?

Answers

Correct	Answer Text
	$\frac{15}{18}$
	$\frac{16}{9}$
	$\frac{8}{9}$

Question

Choose the false sentence:

Answers

Correct	Answer Text
	Multiplying an odd and an even number always results in an even number
	Multiplying 2 even numbers always results in an even number
	Adding 2 even numbers always yields an even number
	Adding 2 odd numbers always results in an even number
	Multplying 2 odd numbers always results in an even number