19. The difference between the compound interest and the simple interest on a certain sum at 14
per annum for 2 yrs is Rs.490. Find the sum.
Answers
Answered by
4
Answer:
here u go
Step-by-step explanation:
Principal =
′
P
′
R=14%
T=2
SI=
100
PTR
⇒S.I=
100
P×14×2
=
25
7P
C.I=P(1+
100
R
)
T
−P
=P(1+
100
14
)
2
−P
=P(
50
57
)
2
−P
=
2500
749P
A.T.P, C.I−S.I=490
⇒
2500
749P
−
25
7P
=490
⇒
2500
749P−700P
=490
⇒49P=490×2500
⇒P=
49
490×2500
=25000
Hence the sum is Rs.25,000
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