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After what time will Rs. 9000 become Rs.10440 at 8%p.a. simple interest?

Principal, P = Rs 9000Rate, R = 8% p.a.Time, T = x yrsAmount, A = Rs 10440Now, SI = PRT100⇒A - P = PRT100⇒10440 - 9000 = 9000 × 8 × x100⇒1440 = 720x⇒x = 1440720 = 2So, Time = 2 yrs

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14.5 years
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P = 9000 R = 8% T=? A = 10440 I = 10440 - 9000 = 1440 I= PRT/100 T= 100I/PR = 100×1440 / 9000× 8 =144000 / 72000 = 2 years
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Ans.-)Let Amount be A, Principal be P, Interest be I, Rate of interest be R & Time be T
We know, A=P+I
A= Rs10440
P=9000
I=A-P=Rs(10440-9000)= Rs1440
​We know,
I=PTR/100
Thus, I=Rs1440
P=9000
R=8%
T=?
... 1440=9000*T*8/100
=>1440/90*8=T
=>16/8=T
=>T=2
... Time=2 years
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