Question

find c.i on rs. 16,000 for 9 months at 20% per anuum compounded quarterly

Answer 1

Hey There !!
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Your Answer :-

Given :-

Principal = Rs. 16,000
Rate = 20%
Time,n = 9 months
$= \frac{3}{4} years$

Now,

Compound Interest
$= p( 1 + \frac{r\%}{100} ) ^{n}$

$\\ = 16000(1 + \frac{20}{100} ) {}^{ \frac{3}{4} }$
$\\ = 160000( \frac{6}{5} ) {}^{ \frac{3}{4} }$
$\\ = 160000 \times 0.02$$\\ = 3200 \: rs$
$<b><U>Hence, the compound Interest after 9 months is Rs 3200$

May it helps you
Be Brainly

Answer 2

${\huge{\mathfrak{Answer:-}}}$

$<b>$

GIVEN

P=16000,

R=20%,

N=9MONTHS=3/4YEARS

AND COMPOUNDED QUATERLY.

FOR COMPOUNDED QUATERLY

AMOUNT = P[1+(R/4)/100]^4N

=16000[1+(20/4)/100]^{4 X (3/4) }

=16 X (21/20)^3

=18522

COMPOUND INTEREST (C.I.) IS

C.I.=AMOUNT - PRINCIPAL

=18522-16000

=Rs 2522............answer :)