Difference between simple interest for 3year and 4 year at 5% annual rate is 42,then amount will be
Answers
Answered by
5
Step-by-step explanation:
5%-------------42
100%---------?
(100×42/5=20×42=840)
Answered by
2
Answer:-
Rate% = 5% p.a
time1= 3 years
time2=4 years
principal= x
S.I. = PRT/100
(100S.I/RT= P) optional
SI for 3 years = (p*3*5)/100
=15p/100
SI for 4 years= (p*4*5)/100
=20p/100
According to question
Si for 4 years - SI for 3 years= 42
-15p/100+20p/100= 42
(-15p+20p)/100= 42
5p= 4200
p = 850
every step is clearly shown if any doubt then ask in comment box
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devstalim:
4200/5=840 last step
see 100 ko jab rhs transpose kiya to vo divide se multiple ho gya
uske bad 20p-15p = 5p
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