4th sum answer this fast please
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where is the question
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Answer:
Step-by-step explanation:
Let sugar be 'x'
And rice be 'y'
According to the question
5x+7y=153. -------eq 1
7x+5y=147. ----------eq2
Multiply eq 1.with 7&eq 2 with 5 and subtract both the eq
35x +49y=1071
35x + 25y =735
(-) (-) (-)
_____________
24y=336
y=14
Putting value of y in eq 1 ,we obtain
5x=153-7y
5x=153-7*14
5x=55
x=11
Cost of 6kg sugar (x) =11*6=66
Cost of 10kg rice (y)=14*10=140
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