Find the answer to the question 1 1 in the third lesson, unit 1, lesson 2 of the sixth grade mathematics. - Training Enrollment Network

Find the answer to the question 1 1 in the third lesson, unit 1, lesson 2 of the sixth grade mathematics.

Solution: let the local speed be x.

(35+x)x3+ 15= 180

3x=60

x=20

Attendant: The speed of the local train is 20 kilometers per hour.

or

( 180- 15)/3-35

= 165/3-35

=20 km

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