Question

divide 17,000into two parts such that the simple interest on the first part for 3 years of at 7% rate of interest per annum is equal to the simple interest on the second part for 4 years at 9% per annum​

Answer 1

Step-by-step explanation:

let's first part be x and another be (17000-x)

case 1 : P:x, t:3 years and R:7%per annum

SO SI: p×r×t/100

Case 2: p :17000-x, r:9%per annum t:4years

SO SI: p×r×t/100

do like this your answer will come

do by this formula

Answer 2

Answer:

Correct option is D)

Let the parts be RsA;Rs15,600−A

Simple Interest I=

100

PNR

For the first situation, Given,

P=RsA

N=5years

R=5 %

So, =>I=

100

PNR

=>I

1

=

100

A×5×5

=>I

1

=

100

25A

For the second situation, Given,

P=Rs15,600−A

N=6years

R=

2

9

%

So, =>I=

100

PNR

=>I

2

=

100

(15,600−A)×6×

2

9

=>I

2

=

100

(15,600−A)×27

Given, I

1

=I

2

=>

100

25A

=

100

(15,600−A)×27

=>52A=421200

=>A=Rs8,100

And other part =Rs15,600−Rs8,100=Rs7,500

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