Ahmad spent ⁴₇ of his salary and gave $312 to his wife. Of the remaining amount, he saved ¹₃ of it and gave ⁴₉ of it to his parents. He then donated ²₃ of what he had left away and gave the remaining $40 to his daughter. What was Ahmad's salary?

Spent	Wife	Saved	Parents	Donated	Daughter	Total
4 u	3 u					7 u
	$312	1 p	2 p
			4x3	5x3
				2x5	1x5
			12 b	10 b	5 b $40

Amount that his daughter received = 5 b

5 b = 40
1 b = 40 ÷ 5 = 8

Amount of his salary given to his parents, his donations and his daughter
= 12 b + 10 b + 5 b
= 27 b
= 27 x 8
= $216

2 p = 216 
1 p = 216 ÷ 2 = 108

Amount of his salary given to his savings, his parents, his donations and his daughter
= 1 p + 2 p
= 3 p
= 3 x 108
= $324

Amount of his salary given to his wife, his savings, his parents, his donations and his daughter
= 312 + 324
= $636 

3 u = 636 
1 u = 636 ÷ 3 = 212

Ahmad's salary
= 7 u
= 7 x 212
= $1484

Answer(s): $1484