a man buy 8 dozen mangoes, 10 dozen apples and 4 dozen bananas. mango cost rs 18 per dozen, apples rs 9 per dozen and bananas rs.6 per dozen. respect the quantities bought by a row matrix and the prices by a column matrix and obtain the total cost
Answers
Answered by
3
Let A the row matrix representing the quantities bought, then A=[
8
10
4
] is a 1×3 matrix.
Let B be the column matrix representing the cost of mangoes,apples and bananas per dozen the B=
18
9
6
is a 3 x 1 matrix
The total cost is given by the product AB
and AB=[
8
10
4
18
9
6
=[144+90+24]=[258]
Hence, the total cost is Rs 258
Answered by
1
Step-by-step explanation:
let a the row matrix representing the quantities brought then a =[8 10 4 ] is a 1×3 matrix . let b be the column matrix representing the cost of mangoes , apples .[144+90+24 ] = 258
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