Question # Ravi invested a total amount of Rs. 65000 in three different schemes ( mathrm{A}, mathrm{B}, mathrm{C} ) with rate of interest 12 p.c.p.a., 16 p.c.p.a. and 18 p.c.p.a. respectively and earned a total interest of Rs. 10,180 in one year. If the amount invested in ( A ) is ( 72 % ) of the amount invested in ( C ) then what was the amount invested in scheme ( B )

# Ravi invested a total amount of Rs. 65000 in three different schemes ( mathrm{A}, mathrm{B}, mathrm{C} ) with rate of interest 12 p.c.p.a., 16 p.c.p.a. and 18 p.c.p.a. respectively and earned a total interest of Rs. 10,180 in one year. If the amount invested in ( A ) is ( 72 % ) of the amount invested in ( C ) then what was the amount invested in scheme ( B )

(a) Rs. 15000

(b) Rs. 25000

(c) Rs. 22000

(d) Rs. 18000

(e) cannot determine

Solution

Amoun of investment in A B & C be ( x, y & z ).

bo ( x+y+z=65000-0 )

( Rightarrow )

[

Rightarrow 12 x+16 y+18 z=1018000

]

Calculcting ( x ), y 4 z from is 4 of 4 in gived

[

begin{array}{l}

x=18000

y=2200

f z=25500

end{array}

]