A bottle of malt costs three times as much as a bottle of Mirinda. If 5 bottles of malt and 4 bottles of Mirinda cost N380.00 altogether, how much does a bottle of malt cost?
A
N90.00
B
N80.000
C
N60.000
D
N40.000
E
N20.000
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
let one bottle of mirinda cost = #x, a bottle of malt will cost #3x
4 bottles of mirinda will cost = #4x, then 5 bottles of malt cost = #15x
total cost = 4x + 15x = 380
x = 380/19 = 20, therefore a bottle of mirinda cost = #20 then a bottle of mirinda will cost 3 x 20 = #60.00
Source: Myschool Past Questions Archive (Record #41849)