the houses in a colony are numbered from 10 to 100 how many times does the digit 2 occurs in house numbers?
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Answered by
48
the numbers of the houses with digit two will be -
12,20,21,22,23,24,25,26,27,28,29,32,42,52,62,72,82,92
the total = 19
12,20,21,22,23,24,25,26,27,28,29,32,42,52,62,72,82,92
the total = 19
Answered by
15
Answer:
The digit 2 occurs 19 times in house numbers.
From 10 to 19, 2 occurs 1 time (in 12)
From 20 to 29, 2 occurs 11 time (once in 20, 21, 23, 24, 25, 26, 27, 28, 29 and twice in 22)
From 30 to 39, 2 occurs 1 time (in 32)
From 40 to 49, 2 occurs 1 time (in 42)
From 50 to 59, 2 occurs 1 time (in 52)
From 60 to 69, 2 occurs 1 time (in 62)
From 70 to 79, 2 occurs 1 time (in 72)
From 80 to 89, 2 occurs 1 time (in 82)
From 90 to 100, 2 occurs 1 time (in 92)
Thus, in total, 2 occurs = 19 times.
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