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Apply problems to solve equations in the first volume of mathematics in grade five.
Hehe, I just did this type of problem with my son today.

Solution: Let Dad catch up with Tintin in X minutes.

38x75+75X= 195X

2850+75X= 195X

195X-75X=2850

120X=2850

X=23.75

A: Dad caught up with his son in 23.75 minutes.

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