How many numbers are there from 3 to 100 which are divisible by 7 and either unit or tenth digit or both include 4?
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Given : Numbers from 3 to 100
divisible by 7 and either unit or tenth digit or both include 4
To Find : How many numbers
Solution:
Numbers from 3 to 100 Divisible by 7
7
14 Unit Digit 4
21
28
35
42 Tenth Digit 4
49 Tenth Digit 4
56
63
70
77
84 Unit Digit 4
91
98
4 Such Numbers
14 , 42 , 49 , 84
4 numbers are there from 3 to 100 which are divisible by 7 and either unit or tenth digit or both include 4
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