Question #2d4f9

1 Answer
Oct 7, 2016

Amount to be invested in #5%# interest bond is #x= $12500#
Amount to be invested in #7%# interest bond is #x= $2500#

Explanation:

Let #$x# be the amount invested in #5%# interest bond.
Then #$(15000-x)# is the amount invested in #7%# interest bond.
By condition #0.05*x + 0.07*(15000-x) =800 :.#
#0.05x-0.07x+1050=800 or 0.02x =250 or x= $12500 :. 15000-x=15000-12500=$2500#
The amount to be invested in #5%# interest bond is #x= $12500#
The amount to be invested in #7%# interest bond is #x= $2500#[Ans]