21 is divided into two parts such that 7 times the first part added to – InterviewSolution

1.

21 is divided into two parts such that 7 times the first part added to 5 times the second part make 145. The first part is : *

Answer»

FIRST PART= X

Second part= (145-x)

7x+5(145-x)= (145-x)

7x+725-5x = 145-x

2x+725 = 145 -x

2x-x= 145-725

x = - 620

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