Question

plz solve question number 6 and 8

Answer 1

Q6

Amount = 1904
Time = 3year
Rate = 1%
Let principle = P
Therefore Si = p×r×t/100
===> p×3×1/100
===> 3p/100

Now,
==> P + Si = amount
==> p + 3p/100 = 1904
==> (100p+3p)/100 = 1904
==> 103p/100 = 1904
==> 103/100×p = 1904
==> p = 1904 ÷ 103/100
==> p = 1904 × 100/103
==> p = 190400/103
==> p = 1848.543689
==> p = 1848.54

Now,



Q8

Let amount = 100
Therefore Si = 2/5 of amount
===> 2/5×100
===> 40
Therefore p = amount - si
===> 100-40
===> 60
Time = 10 year

Hence,

Rate = Si×100/p×t
===>40×100/60×10
===> 6.6666667%
===> 6.67%