Ubaid ullah hasan

During the S.H.M of simple pendulum, when the bob comes back to its mean position, the displacement gradually decreases, and eventully becomes zero at the equilibrium position, while it is said that its velocity is still maximum despite of zero displaceme...

Let, 'x' be the amount that each guest came with, then the total amount=7x, and 7x=154 dividing both sides by 7, x=22, 3x=66R.s paid by jessica 4x=88R.s paid by aaron