A pipe X is 30 meters and 45% longer than another pipe Y. find the length of the pipe Y. Options
A) 20.12 B) 20.68 C) 20 D) 20.5 E) None of these
Explanation :   Length of pipe X = 30 meter   Given that pipe X is 45% longer than Y   Let the length of pipe Y = y   Then, Length of pipe X =y×(100+45)/100   ⇒ 30 = y × (145/100) =&gt; y = 30×100/145=6×100/29=600/29=20.68   Answer : Option 20.68
<result>B</result>
A pipe X is 30 meters and 45% longer than another pipe Y. find the length of the pipe Y.