1.	A number is increased by 13, multiplied by 6 and then divided by 2. The final number is 108. What is the original number?
		A.	23	B.	14
		C.	-4	D.	16
		Hint
	2.	Maria's age multiplied by 3, decreased by 17 and then doubled is 68. How old is Maria?
		A.	22	B.	17
		C.	15	D.	14
		Hint
	3.	A number increased by 12, divided by 3 and then decreased by 6 is 19. What is the original number?
		A.	75	B.	27
		C.	87	D.	63
		Hint
	4.	Half of Tom's age, increased by 19, divided by 3 and then multiplied by 6 is 54. How old is Tom?
		A.	44	B.	74
		C.	16	D.	4
		Hint
	5.	Work backwards to complete
		A.		B.
		C.		D.
		Hint