Question

find the number two-digit odd multiples of 7 arithmetic progression

Answer 1

Answer:

2 digits odd multiple of 7 r = 21 , 35 ,49 ,63 ,147 etc.

Answer 2

Given :   two-digit odd multiples of 7

To find : Numbers in arithmetic progression

Solution:

odd multiples of 7  

7 * 1 = 7

7 * 3  = 21

7 * 5 = 35

7 * 7  = 49

7 * 9 = 63

7 * 11 = 77

7 * 13 = 91

7 * 15 = 105

two-digit odd multiples of 7

21 , 35 , 49 , 63 , 77 , 91

This is an arithmetic progression

first term = 21

common difference = 14

number of terms = 6  

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