Question

a certin amount become 8325 in 4 years at rate of 5.5% find the principal and intrest

Answer 1

Answer:

$</p><p>(1) Let the deposit per month =Rs.p</p><p></p><p>Number of months  (n)=36</p><p></p><p>Rate of interest (r) =7.5%p.a. </p><p></p><p>∴S.I=P×2×12n(n+1)×100r</p><p></p><p>⇒8325=P×2×1236×37×1007.5</p><p></p><p>⇒8325=P×23×37×1007.5</p><p></p><p>⇒P=3×37×7.58325×2×100=Rs.2000</p><p></p><p></p><p>(2) maturity value =P×n+S.I=Rs.(2000×36+8325)=Rs.80325</p><p></p><p></p><p>Hence, this is the answer.</p><p></p><p>$