Two brothers and sisters deposited in 260 yuan and donated money for disaster relief. My sister donated a deposit of13, and my brother donated 10, leaving as much money as the two. How much money do these two brothers and sisters have?

Solution: Suppose my sister has a deposit of X yuan and my brother has a deposit of (260-x) yuan.

Sister donated13 deposit, leaving 2/3 deposit, which is 2x/3 yuan.

My brother donated 10, and the deposit was (260-x- 10) yuan.

There is as much money left as there are two people.

Yes:

2x/3=260-x- 10

2x/3=250-x

2x=750-3x

5x=750

X= 150 sister

260-150 =110 yuan brother

Answer: Sister deposit 150 yuan, brother deposit 1 10 yuan.

Or:

(260- 10)÷( 1+2+2)

=250÷5

= One in 50 yuan.

Sister: 50×3= 150 yuan.

Brother: 50× 2+10 =110 yuan.