what principal will earn interest of Rs 812 at 3whole 1/2 %/annum in 7whole 1/4year
Answers
Answered by
6
Answer:
S.I=P×R×T÷100
812=P×7×29÷100×2×4
812=p×203÷800
812×800÷203=P
principal =3200
Answered by
1
Answer:
3200
Step-by-step explanation:
S.I =P×T×R/100
GIVEN
S.I =812
Rate of interest =3 1/2
=3×2+1/2
=7/2 %
Time=7 1/4
=7×4+1/4
=29/4
Then,
S.I=P×T×R/100
=> S.I×100 = P×T×R
=> 812×100 = P×29÷4×7÷2
=> 81200 = P×203÷8
=> 81200×8÷203 = P
=> P = 400×8
=> P = 3200
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