Question

a loan earns interest at a certain rate (compound)per cent per annum.four years ago the amount was rs.81 ;now it is rs.144.what will the amount be two years hence?

Answer 1

Use the formula and plug in the values.

Answer 2

\[A=P(1+\frac{ r }{ 100 })^n\]

Answer 3

dude i know the formula but this sum is different

Answer 4

basically we neither have p value nor t nor r only we have is two compound interest amount

Answer 5

you have P, A and n

Answer 6

where do you see p and 81 and 144 are compound interest amount and not the total amount

Answer 7

it is the interest+year 0 p

Answer 8

u solve the problem if you can and pls give me the steps coz i can't

Answer 9

first rearrange the formula and put r to one side

Answer 10

\[144=81(1+\frac{ r }{ 100 })^4\] \[\frac{ 144 }{ 81 }=(1+\frac{ r }{ 100 })^4\]

Answer 11

\[\frac{ 16 }{ 9 } = (1+\frac{ r }{ 100 })^4\]

Answer 12

\[\frac{ 4 }{ 3 } = (1 + \frac{ r }{ 100 })^2\]

Answer 13

\[\frac{ 4 }{ 3 } = 1+ \frac{ r }{ 50 } + \frac{ r^2 }{ 10000 }\]\[-\frac{ 1 }{ 3 } = \frac{ r }{ 50 } + \frac{ r }{ 10000 }\]

Answer 14

i do not think this is ok...coz the answer given id 191.40

Answer 15

some typos there

Answer 16

ok thanks anyways

Answer 17

mines 15.47

Answer 18

no its 191.40

Answer 19

thanks for you try

Answer 20

the interest rate is 15.47

Answer 21

so the 2 years stuff its up to you to try

Answer 22

i'm so sorry saseal pls don't mind your calculation was absolutely correct .....i understood the sum a little later
thanks dude thank you so much