Question
how many two-digit numbers are divisible by 5?
Activity :- Two-digit numbers divisible by 5 are, 10,15,20........95.
Here, d=5, therefore this sequence is an A.P.
Here a=10, d=5, Tn=95, n=?
$t _{ n }$= a+(n-1____)
____= 10+(n-1)×5
____= (n-1)×5
____= (n-1)
therefore n=____
there are ____two-digit numbers divisible by 5.
Activity :- Two-digit numbers divisible by 5 are, 10,15,20........95.
Here, d=5, therefore this sequence is an A.P.
Here a=10, d=5, Tn=95, n=?
$t _{ n }$= a+(n-1____)
____= 10+(n-1)×5
____= (n-1)×5
____= (n-1)
therefore n=____
there are ____two-digit numbers divisible by 5.
