Product of digits in 1st column: 1 × 2 × 3 = (6)2 = 36 Product of digits in 2nd column: 2 × 4 × 6 = (48)2 = 2304 Product of digits in 3rd column: 3 × 5 × 7 = (105)2 = 11025
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1200 metres long train crosses a man who is moving in the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 20 s...
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