Question
Find the number of zeros at the end of the following
expression: 12 Ă— 16 Ă— 25 Ă— 40 Ă— 45Solution
Number of zeros will depend on number of twos and number of fives (whichever is less). Since, 12 = 22Â Ă— 3 16 = 24 25 = 52 40 = 23Â Ă— 5 45 = 32Â Ă— 5 = 0 Number of fives in the following expression = 0 + 0 + 2 + 1 + 1 = 4 So, number of zeros = 4
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