Question

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

Answer 1

Answer:

Refer to the given attachment, Do follow me and do mark as brainliest.....✌

Answer 2

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Ap=5 , 6,7.5,8.5,....

20.75

a= 5, d=1.75,. an=20.75

$\bold{\huge{\underline{\underline{\rm{ </em></strong><strong><em>Form</em></strong><strong><em>ula</em></strong><strong><em>!</em></strong><strong><em>:}}}}}$

an= a+ ( n-1) d

20.75. =5+(n-1)1.75

15.75= (n-1)(1.75)

$\frac{15.75}{1.75} = n - 1$

9=n-1

10=n