Question

the principal amount to Rs 944 in 3 years and to Rs 1040 in 5 years if each sum was invested at the same simple interest what is the principal?​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

@π$\/\/€R :

let the P = Rs. X

R = R%

P = Rs. X

R = R%

T = 3 years

S.I = P×R ×T

----------------- = 944 - X = X × R × 3

100. ----------------

100

100 ( 944 - X )

----------------- = R --- (i)

3X

Case -- 2nd

P = Rs.X

R = R%

T = 5 years

S.I = Rs. ( 1040 - X )

S.I = P×R×T

-----------

100

1040 - X = X × R × 5

------------------

100

100 ( 1040 - x )

------------------- = R --- (ii)

5X

ATQ : 100 ( 944 - X ) 100 ( 1040 - X )

------------------. = --------------------

3 X. 5X

( 944 - x ) × 5 = 3× ( 1040 - X )

4720 - 5X =. 3120 - 3 X

4720 - 3120 = 5 X - 3X

1600 = 2 X

X. = 1600

--------. = Rs. 800

2

ANSWER : Rs. 800

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