Question

The first row of a theater has 16 seats. There are 3 more seats in each row thereafter. How many seats are in the 25th row/

Answer 1

Answer: 88

Explanation:

Given

The first row has 16 seats

then there are 3 more seats in each row

this follows an AP with the first term
`a=16` and common difference
`d=3`

So, no of seats in the 25 th row is

`\Rightarrow a_(25)=a+24d\\\Rightarrow a_(25)=16+3* 24\\\Rightarrow a_(25)=88`

Thus, there are 88 seats in the 25 th row