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Ques:- A train 132 m long passes a telegraph pole in 6 seconds. Find the speed of the train
A. 70 km/hr
B. 71 km/hr
C. 72 km/hr
D. 79.2 km/hr
Ques:- What was the first polyester fiber invented in 1941 called?
A. Terylene
B. Poplin
C. Terry cot
D. Rubia