Question

pls answer urgently

I'll I'll u as brainliest ​

Answer 1

Answer:

6) 48 month

7) 30°

this is your answer okkk

Answer 2

Step-by-step explanation:

R=9

Interest amount=Rs1764

Money deposited =Monthly value x number of months

=200×n=

Rs 200 n

Now principal for one month =200×n(n+1)/2

=200n^2+ 100n

Interest will be =Principal for one month x R /×100

. 1764=100n^2+100n)×9/1200

. 1767=0.75n^2 +0.75n

We have n= -b + - √b^2 -4ac /2a

= -0.75+-√0.5625+5301/1.5

=72.06/1.5

=48.04 months