How many multiples of 2, 5 between two digit numbers find n?
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a.p= 10,12,14,……..…......98
d=12-10=2
a=10
an=98
an=a+(n-1)d
98=10+(n-1)2
98-10=(n-1)2
88=(n-1)2
88/2=(n-1)
44=n-1
44+1=n
45=n(ans)
d=12-10=2
a=10
an=98
an=a+(n-1)d
98=10+(n-1)2
98-10=(n-1)2
88=(n-1)2
88/2=(n-1)
44=n-1
44+1=n
45=n(ans)
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