find how many two digit no are there using AP formula
Answers
Answered by
0
Step-by-step explanation:
An arithmetic progression (A.P) is a progression in which the difference between two consecutive terms is constant. ∴ Two digit numbersdivisible by 3 = 30
Answered by
0
Answer:
90
Step-by-step explanation:
As we know that first two digit no. is 10
and last two digit no. is 99
=> Formula => An = a+(n-1)d
10,11,12,13--------------99
here
A = 10
d = 1
N =?
=> 99 = 10+(n-1)1
=> 99 = 10+n-1
99 = n +9
=> n = 90
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