6. How long will it take a certain sum of money to triple itself at 13 1/3% per annum simple interest?
Answers
Answer:
T = 15 year
Step-by-step explanation:
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Hi ,
Let the principal ( P ) = Rs x
Amount = A = Rs 3x
Simple interest ( I ) = A - P
I = 3x - x
I = 2x
Rate of interest ( R ) = 40/3 %
Let time = T years
PTR/ 100 = I
T = ( 100 I ) / PR
= ( 100 × 2x ) / ( x × 40/3 )
= ( 100 × 2 × 3 ) / 40
= 15
Therefore ,
T = 15 year
Answer:
ANSWER
Let the sum of money be x
Amount = 3 × Rs x
= Rs 3x
Interest = Amount – Principal
= Rs 3x – Rs x
= Rs 2x
Rate =
13 (1/3)% p.a.
= 40 / 3 % p.a.
Time (T) = (I × 100) / (P × R)
= (2x × 100) / x × (40 / 3) years
On further calculation, we get,
= (2 × 100 × 3) / 40 years
= (100 × 3) / 20 years
We get,
= 5 × 3 years
= 15 years
Step-by-step explanation: