Math, asked by parasjaat001, 1 year ago

A man receives ₹60 for the first week and ₹3 more each week than the preceding week. How much does he earn by the 20th week?

Answers

Answered by deepika1567

2

the 20th term is 117

Attachments:

somyamangla: we have to tell total not the amount on 20th week

deepika1567: kk

Answered by somyamangla

11

a=60
d=3

S20=20/2(2*60+19*3)
$20 \div 2(2 \times 60 + 19 \times 3) = 1770$
answer =1770

she will have 1770 rupee

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