A basket of apples weighs 3.2kg. After half of the apples are sold, the basket weighs 1.7kg?

A basket of apples weighs 3.2kg. After half of the apples are sold, the basket weighs 1.7kg?

(3.2-1.7) × 2, = 1.5 × 2, = 3 (kg); 3.2-3 = 0.2 (kg); answer: Apple weighs 3kg, basket weighs 0.2kg

A basket of apples with a basket weighs 3.2kg. After half of the apples are sold, the basket still weighs 1.7kg. How much are the apples and the basket?

Half weight of Apple = 3.2-1.7 = 1.5kg
So Apple weight = 2 × 1.5 = 3 kg
Basket weight = 3.2-3 = 0.2kg
A: the apple weighs 3kg and the basket weighs 0.2kg
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There are two piles of small balls, one in pile a and the other in pile B. first, take out as many balls from pile a as pile B, and then take out as many balls from pile B and put them into pile A. at this time, there are 16 balls in pile a and pile B. how many balls did pile a and pile B have at the beginning?

Before taking the ball from pile B to pile a, pile a has 16 △ 2 = 8 small balls, pile B has 16 + 8 = 24 small balls; it can be concluded that at first pile B has 24 △ 2 = 12 small balls, pile a has 8 + 12 = 20 small balls. A: pile a has 20 small balls, pile B has 12 small balls