Hi... Solve these plzz......
Answers
Question ( a )
Rate = 4 + 9 / 16%
= ( 4 × 16 + 9 ) / 16 %
= ( 64 + 9 ) / 16 %
= 73 / 16 %
Daily interest = 1
Interest = P R T / 100
Since daily interest = 1
Yearly interest = 365 × 1
= 365
365 = P R T / 100
T = 1 year .
R = 73/9 %
365 = ( P × 1 × 73 / 16 ) / 100
= > 365 = 73 P / 1600
= > P = ( 365 × 1600 ) / 73
= > P = 5 × 1600
= > P = 8000
ANSWER :
The sum of money was Rs 8,000
Question ( b )
R = ?
Given : A = 3 P
We know that : A = P + I
==> P + I = 3 P
==> I = 3 P - P
==> I = 2 P
So :
2 P = P R T / 100
Cancel P both sides :
= > 2 = R T / 100
But T = 25
So = > 2 = 25 R / 100
= > R / 4 = 2
= > R = 4 × 2
= > R = 8 %
ANSWER :
The rate will be 8 %
Question ( c )
P = Rs 1600
R = 2 + 1/4 %
= > R = ( 2 × 4 + 1 ) / 4 %
= > R = ( 8 + 1 ) / 4 %
= > R = 9 / 4 %
T = 3 years 9 months
= 3 years + 9 / 12 years
= 3 years + 3 / 4 years
= ( 12 years + 3 years ) / 4
= 15 years / 4
I = P R T / 100
= > I = ( 1600 × 9/4 × 15 / 4 ) / 100
= > I = ( 100 × 9 × 15 ) / 100
= > I = 9 × 15
= > I = 135
A = P + I
= > A = 1600 + 135
= > A = 1735
ANSWER :
The amount is Rs 1735.
Thanks for the question !