Question

Select One Option Correct from the following : Two bodies M and N of equal masses are suspended from two separate massless springs of spring constants $k_1$ and $k_2$ respectively. If the two bodies oscillate vertically such that their maximum velocities are equal, the ratio of the amplitude of vibration of M to that of N is
(A)k1/k2
(B)$\sqrt{k_2/k_1 }$
(C)k2/k1
(D)$\sqrt{k_1/k_2 }$

Answer 1

two items are sold for rupees 400 each one at a profit of 25% and other at a loss of 20% find the overall percentage profit or loss