Question 31 How many are identical terms given two A.P.s of length 100, and every term in...
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Question 31
How many are identical terms given two A.P.s of length 100, and every term in the second A.P. is twice the corresponding term of the first, and the first term of both sequences are equal?
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Answer: B. B) 50
Covering a 9 ft table at an effective speed of 18 ft/s takes 9 / 18 = 0.5 = 1/2 second.
Step-by-step Derivation:
Step 1: The length of the table to be traversed by the ball is 9 feet.
Step 2: The relative smash speed across the table is 18 feet per second.
Step 3: Time = Distance / Speed = 9 / 18 = 1/2 second.