An 85m long rod is divided into two parts. If one part is $2/3$of the other part, then the longer part (in metres) is :
Options:
A . 51
B . 85
C . 56 $2/3$
D . 34
Answer: Option A Answer: (a)Let the longer part be x According to question, Shortest part = $\text"2x"/3$ x + $2/3$x = 85m = $\text"3x + 2x"/3$ = 85= $\text"5x"/3$ = 85 ∴ x = 51m
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