Solved papers for JEE Main & Advanced JEE Main Online Paper (Held On 23 April 2013)
done JEE Main Online Paper (Held On 23 April 2013) Total Questions - 2
question_answer1) If the curves\[\frac{{{x}^{2}}}{\alpha }+\frac{{{y}^{2}}}{4}=1\] and \[{{y}^{3}}=16x\] intersect at right angles, then a value of \[\alpha \]is:
JEE Main Online Paper ( Held On 23 April 2013 )
question_answer2) The cost of running a bus from A to B, is \[\operatorname{Rs}.\left( \operatorname{av}\frac{\operatorname{b}}{\operatorname{v}} \right),\] where v km/h is the cost speed of the bus. When the bus travels at 30 km /h, the cost comes out to be Rs. 75 while at 40 km/h, it is Rs. 65 Then the most economical speed (in Km/h)of the bus is :
JEE Main Online Paper ( Held On 23 April 2013 )