Ben spent ³₅ of his salary and gave $42 to his wife. Of the remaining amount, he saved ¹₃ of it and gave ⁵₁₂ of it to his sisters. He then donated ²₃ of what he had left away and gave the remaining $49 to his son. What was Ben's salary?

Spent	Wife	Saved	Sisters	Donated	Son	Total
3 u	2 u					5 u
	$42	1 p	2 p
			5x3	7x3
				2x7	1x7
			15 b	14 b	7 b $49

Amount that his son received = 7 b

7 b = 49
1 b = 49 ÷ 7 = 7

Amount of his salary given to his sisters, his donations and his son
= 15 b + 14 b + 7 b
= 36 b
= 36 x 7
= $252

2 p = 252 
1 p = 252 ÷ 2 = 126

Amount of his salary given to his savings, his sisters, his donations and his son
= 1 p + 2 p
= 3 p
= 3 x 126
= $378

Amount of his salary given to his wife, his savings, his sisters, his donations and his son
= 42 + 378
= $420 

2 u = 420 
1 u = 420 ÷ 2 = 210

Ben's salary
= 5 u
= 5 x 210
= $1050

Answer(s): $1050