What percentare of numbers from 1 to 70 have squares that end in the digit 1
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Answered by
2
Answer:
20%
Clearly, the numbers which have 1 or 9 in the unit's digit, have squares that end in the digit 1. Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69. % = 20%.
Answered by
1
Answer:
20 % is the answer
Step-by-step explanation:
1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69. are no between 1 and 70 and there are 14 numbers
Required percentage = (14/70) x 100 % = 20%.
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