Solution: b is regarded as a multiple of 1

Then b originally had102/(2.4+1) =102/3.4 = 30 kg.

A originally 102-30 = 72kg.

2. Two schools, A and B, donated money to the farmers who suffered from the flood. Two schools donated 3600 yuan, of which 65438+B from school A+0.5 times from school B.. How much did a school donate?

Solution: If B is regarded as a multiple of 1, then the donation from school B is 3600/(1.5+1) = 3600/2.5 =1440 yuan.

A school donated 3600- 1440=2 160 yuan.

involve