ARITHMETIC PROGRESSION 4

The 1st term of arithmetic progression is 33 and the common difference is 40. Find the nth term

solution

A1=33, d= 40, n=?

An =A1 + (n-1) d

An=33 + (n-1)40

An=33 + 40n -40

An=40n + 33-40

An=40n – 7

Hence the nth term is An=40n – 7  

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The 1st term of arithmetic progression is 48 and the common difference is 98. Find the nth term