Question
If A $ B means A X B, A € B means A ÷ B, A & B means
A + B and A @ B means A - B, then what is the value of '178 & 100 € 25 @ 18 $ 4 & 22'?Solution
178 & 100 € 25 @ 18 $ 4 & 22 178 + 100 ÷ 25 - 18 X 4 + 22 178 + 4 - 18 X 4 + 22 178 + 4 - 72 + 22 = 132
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A train 480 metre long takes 32 sec to cross a man running at a speed of 6 km/hr in the direction same to that of train. What is the speed of the train?
