Yen and Eric received $387 in total from their father. After Yen spent ⁵₆ of her money and Eric deposited ⁴₇ of his money into his savings account, Yen had twice as much money as Eric.

1. Find the amount of money Yen received from her father.
2. If Eric' savings increased by 40% after the deposit, how much was Eric' savings in the bank in the end?

	Yen	Eric	Total
Before	6x6 = 36 u	7 u	$387
Change	- 5x6 = - 30 u	- 4 u
After	1x6 = 6 u	3 u
Comparing Yen and Eric in the end	2x3	1x3

Fraction of Yen's money left
= 1 - ⁵₆
= ¹₆

Fraction of Eric's money left
= 1 - ⁴₇
= ³₇

The amount that Yen had in the end is repeated.  Make the amount that Yen had in the end the same. LM of 2 and 1 is 6.

Total amount given to Yen and Eric
= 36 u + 7 u
= 43 u

43 u = 387

1 u = 387 ÷ 43 = 9

Amount that Yen received from her father
= 36 u
= 36 x 9
= $324

(b)
Amount that Eric deposited
= 4 u
= 4 x 9
= $36

Savings that Eric had at first = 100%

Savings that Eric had in the end
= 100% + 40%
= 140%

40% of the savings = 36
1% of the savings = ³⁶₄₀
140% of the savings = 140 x ³⁶₄₀ = 126

Eric's savings in the end = $126

Answer(s): (a) $324; (b) $126