Math, asked by nirbhay336699, 1 year ago

if you are genious then solve

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Answered by Sahil4U

Solution 1)

Given

principal--196
Rate--?
Time--2 Years
Amount-- 225

By Formula

Amount= Principal (1+Rate%/100)n(Time)

225= 196(100+Rate%/100)²

225/196=(100+Rate%/100)²

Convert them into Simplest Form

(15/14)²= (100+Rate%/100)²

Compare the Degrees

15/14= 100+Rate%/100

#_Cross_Multiply

15×100=14×100+14×R

1500=1400+14R

Transfer 1400 to L.H.S

1500-1400=14R

100= 14 R

Rate = 100/14=7.1428%

Solution No. 02

First

Compound Interest=Amount -Principal

(Obtain Amount through this Formulae)

345= Amount-3136
Amount= 345+3136= 3481

Then Applied The Same Formulae(Amount) As I Am Applied On Solution 1 to get Rate(%)

Sahil4U: anytime

nirbhay336699: bro give one answer more.quest=a certain sum amounts to rs 1331 in 3/2 years at 20 %p.a .compound interest compounded half yearly .determine the sum

nirbhay336699: and bro the answer of this ques. is rs 1000

Sahil4U: Given Amount=1331,Rate=2%,Time=3/2 years,Principal=?,As we know that in half yearly rate half while time doubles.Amount=P(1+Rate%/100)³,1331=P(100+10%/100)³,1331/P= (110/100)³

Sahil4U: Compare them And cross multiply ,u will get the answer

nirbhay336699: ok

nirbhay336699: please bro solve this: Reena and Rosera borrowed 60000 and 50000 respectively for a period of 3 years I repeat simple interest @ 10% b a while Ruchi repaid compound interest @ 10% pk compounded annually who paid more interest and by how much

nirbhay336699: hello bro,how Are you .please helo me in one question

nirbhay336699: the national wealth of a country increased by 4% of its value at the beginning of every year find the national wealth of the country in 1985 if it was estimated at rs 3.125×10^12 in 1983

nirbhay336699: please bro help me in one quest

Answered by Deekshasachdeva

Answer:

Hey mate!!!! This is your answer

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