Question

( Q.No 4: (a) Three sides of a triangle are (2x++2x+1)cm, (x²+7)cm and (3x+-2x-3) cm What is its perimeter? (b) The side of a square is (8x+3)cm. Find its perimeter
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Answer 1

Answer:

Given Train starts at the same time.

Hence, Time remains constant.

Speed of Train 'T1' be 'S1' = 40 km\hr

Speed of Train 'T2' be 'S2' = 45 km\hr

Let X be the distance at which trains meet.

Train T2 travels X+40 km more than Train T1.

Step-by-step explanation: