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  1. Divide ₹6800 into two parts so that S.I. on the first part for 3
    1
    Years at 6% may be equal to
    3
    the interest on the second part for 3
    1
    Years at 4% Percent Per annum
    3

    1. ₹ 2600 ; ₹ 4200
    2. ₹ 2800 ; ₹ 4000
    3. ₹ 2500 ; ₹ 4300
    4. ₹ 2700 ; ₹ 4100
Correct Option: B

Let the first part be p. then ,
second part = (6800 – p)

Interest on first part for 3
1
years at 6%
3

=
p × 6 × ( 10/3 )
=
p
1005

Interest on second part for 3
1
years at 4%
2

SI =
(6800 - p) × 4 × ( 7/2 )
100

SI = ₹
(6800 - p) × 7
50

According to the question,
p
=
(6800 - p) × 7
550

⇒ 10p = (6800 – p) 7
⇒ 10p = 47600 – 7p
⇒ 17p = 47600
⇒ p = 2800
Hence, first part = ₹ 2800
and second part = ₹ (6800 – 2800) = ₹ 4000.



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