Question

solve this 2 please............

Answer 1

at the principal be ₹p and rate be r%
according to question
3pr/100+p=4745
5pr/100+p=5475
solve for p and r by equating the co efficient

Answer 2

Here, As we know the formula,
SI = PRT/100
and ,
Simple interest for 1 year = 837-783
= Rs 54.
As Amount in 2 years = Rs 783
And, SI for 2 year = 54*2 = Rs 108.
So, Sum = Rs(783-108) = Rs 675.
Now,
As per the formula,
Rate = SI *100/P T = 54*100/(675*1) = 8% per annum.
Second can be done by the same process.

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