Question

2) Reshma bought 20 rose saplings for rupees 46 each , 20
jasmine saplings for rupees 23 each and I lemonSaplings for rupees 20.Findtotal money sent by her by
using suitable property
please do step by step and do in a notebook then send​

Answer 1

Answer:

I DON'T KNOW THE ANSWER I WILL HELP YOU.

Answer 2

Given, Rose plants in 1st, 2nd, 3rd rows are:

23, 21, 19,...

,5

Since Difference between consecutive terms is same,

it is an AP

We have to find number of row in the flower bed Lets assume there are n rows in the flower bed

Here, a_{n} = 5 , a = 23

& d = 21-23 = -2

Putting these values in the formula

a₁ = a + (n-1)d

5 = 23 + (n - 1)(- 2)

5 = 23 - 2n + 2

5 = 23 - 2n + 2

5 = 25 - 2n

2n = 25 - 5

2n = 20

n = 20/2

n = 10

So, there are 10 rows in the flower bed.

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