Question

Find the amount to be paid at the end of a 4
years if principal if 1200rs at 10 percent p. a

​

Answer 1

Step-by-step explanation:

principal ( p) = 1200 rs

Rate ( R ) = 10%

Time ( T ) = 4yrs

there have two condition -

1. condition -

when Simple interest ( SI )

SI = ( P * R * T ) / 100

= ( 1200 * 10 * 4 ) / 100

= 48000 / 100

= 480 rs

Amount = SI + Principal

480 + 1200

= 1680 rs

2. Condition

when compound interest ( CI )

Amount = P [ ( 1 + R ) / 100 ]^T

= 1200 [ 1 + ( 10 ) / 100 ] ^ 4

= 1200 [ ( 100 + 10 ) / 100 ]^ 4 { take LCM of 100 }

= 1200 [ 110 / 100 ] ^4

= 1200 *( 11/ 10 ) *( 11/10 ) * (11/ 10 ) *( 11/ 10 )

= 1200 * (121/ 100 ) * (121 / 100 )

= 12 * 121 * 121 / 100

= 175692 / 100

= 1756.92 rs

plz give me thank and mark me as brainlist