Question

I
If amount is rs 354
Time - 3 years
Rate - 6 % p.a.
Find p

Answer 1

$\textsf{Answer :-}$

__________________________

Given :-

Principle ( p ) = rs 354

Time ( t ) = 3 years

Yearly rate ( r ) = 6% p.a.

Now ,

★ Simple interest

= p t r / 100

= 354 × 3 × 6 / 100 [ • Putting the values ]

= 6372 / 100

= rs 63.72

★ And compound interest

= p ( 1 + r / 100 )^t

= 354 ( 1 + 6 / 100 )^3 [ • Putting the values ]

= 354 ( 53 / 50 )^3

= 354 × ( 53 / 50 ) × ( 53 / 50 ) × ( 53 / 50 )

= rs 421.61

★ And compounded money

= 354 + 421.61

= rs 775.61

_________________________________

Answer 2

$<b>Heya mate. (^_-). Solution below.$
====================================

• Let the Principal (P) be 'x'.

• Given Rate (R) = 6% p.a.

• Given time (T) = 3 years.

• Since it is not specified, we assume that the amount is calculated on simple interest.



• Then, simple Interest (S.I)

= P × R × T/100

= x × 6 × 3 /100

= 18x/100



• Now, Amount (A)

= P + S.I

= x + 18x/100

= (100x + 18x)/100

= 118x/100



• But, given amount = 354

=> 118x/100 = 354

=> x = 354 × 100/118

=> x = 35400/118

=> x = 300

• Therefore, the Principal = x = 300 Rs.

$<marquee>Hence, P = 300 Rs.</marquee>$
====================================

Thank you.. ;-)