Sanvi purchased some books for Rs. 120. If she purchased 3 more books for the same amount each book would have cost her Rs. 2 less. Find the
number of books purchased by Sanvi and the price of each book,​

14

step-by-step explanation:

14 x 3 = 42

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

apex says the answer is true