A certain sum of money amounts to 10880 in 3 years and 11840 in 4 years find the principle and rate
Answers
Answer:
12 %
Step-by-step explanation:
p+prt/100 = 10880
p(1+ 3r/100) = 10880 .....(1)
Also, p(1+ 4r/100) = 11840 ....(2)
(1)/(2) :-
(1+ 3r/100) = 10880
------------------ ----------
(1+ 4r/100) 11840
11840+11840*3r/100=10880*(1+ 4r/100)
11840+1184*3r/10
= 10880 + 1088*4r/10
11840 - 10880 = 1088*4r/10-1184*3r/10
9600 = 800r
r = 96/8 = 12
p = 10880/(1+3r/100)
= 10880/(1+36/100)
= 1088000/136
= 8000
Answer:
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Answer:
12 %
Step-by-step explanation:
p+prt/100 = 10880
p(1+ 3r/100) = 10880 .....(1)
Also, p(1+ 4r/100) = 11840 ....(2)
(1)/(2) :-
(1+ 3r/100) = 10880
------------------ ----------
(1+ 4r/100) 11840
11840+11840*3r/100=10880*(1+ 4r/100)
11840+1184*3r/10
= 10880 + 1088*4r/10
11840 - 10880 = 1088*4r/10-1184*3r/10
9600 = 800r
r = 96/8 = 12
p = 10880/(1+3r/100)
= 10880/(1+36/100)
= 1088000/136
= 8000
Step-by-step explanation: