Question

Ramkali saved 5 in the first week of a year and then increased her weekly savings by
1.75. If in the nth week, her weekly savings become 20.75, find n.​

Answer 1

Answer:

Step-by-step explanation:

Given , a = 5, d = 1.75, an = 20.75, n = ?

In A.P.

nth term is given by an = a + (n − 1) d

n − 1 = 9

n = 10

Hence, n is 10.

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