A batch of fruits, the remaining quality is one-third of the fruits sold. After selling 50 kg, the ratio of remaining mass to sold mass is 1: 4. How many kilograms are there in this batch of fruit?

The total amount of fruit is fixed, set as the unit "1"

The rest is 1/4.

Now all that remains is 1/5.

The total weight is

50÷ (1/4-1/5) =1000 kg.

A: The total amount is 1000 kg.

(2)

The number of people in group A and group B is equal. Group a recruited 24 more people. Group B 14 people retired, and now there are more people in Group A than in Group B19/6 ... How many people are there in Group A and Group B?

If the unit of Group B is "1", then the current number of people in Group B is

( 14+24)÷( 19/6- 1)= 12

There are 12+ 14=26 people in group A and group B.

A: There were originally 26 people in Group A and Group B. ..