A certain sum of money amounts to Rs. 1008 in 2 years and to Rs. 1164 in 31⁄2 years. find the sum and the rate of interest?
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sum=800 & rate or interest = 13•\•
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Given -
amount in 2 years = 1008 rs
amount in 7/2 years = 1164 rs
Therefore, interest of 7/2 - 2 years =1164 - 1008
interest of 3/2 years = 156
S.I. = (p×r×t)/100
for Interest = 156 ,time = 3/2, p = 1008
r = S.I.×100/p×t
r = 15600/1512
r = 10.307% or, r = 10%
Let sum borrowed be x
S.I. for 2 yrs = x * 10 * 2 / 100 = x/5
amount = p + S.I.
1008 = x + x/5
1008 = 6x/5
1008×5/6 = x
Therefore, Sum or x = 840 rs.
If it helps plz mark brainliest and plz inform me if answer is wrong.
amount in 2 years = 1008 rs
amount in 7/2 years = 1164 rs
Therefore, interest of 7/2 - 2 years =1164 - 1008
interest of 3/2 years = 156
S.I. = (p×r×t)/100
for Interest = 156 ,time = 3/2, p = 1008
r = S.I.×100/p×t
r = 15600/1512
r = 10.307% or, r = 10%
Let sum borrowed be x
S.I. for 2 yrs = x * 10 * 2 / 100 = x/5
amount = p + S.I.
1008 = x + x/5
1008 = 6x/5
1008×5/6 = x
Therefore, Sum or x = 840 rs.
If it helps plz mark brainliest and plz inform me if answer is wrong.
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