Restless life is risky. We have to take rest, ___

Dynamics. Rigid-body dynamics studies the movement of systems of interconnected bodies under the action of external forces. The dynamics of a rigid body system is described by the laws of kinematics...

Correct option is (D) \(7\,\frac{1}{2}\) hrs \(\because\) Time taken to fill a \(50\,l\) of tank = 5 hours \(\therefore\) Time taken to fill a \(75\,l\) of tank \(=\frac5{50}\times75\;hours\) \(=\frac{75}{10}\;hours\) = 7.5 hours = 7 hours + \(\frac12\) hours = \(7\frac12\) hours

What is lotted cannot be blotted.

I am looking for Raihan. If I had seen him, I would have told him about the matter.

Shila seemed upset. She talked as if, she had been mad.

Yesterday we were at our office. Scarcely had we finished our duty, when the tremor occurre

We are not free from danger. Danger often comes where, it is feared.

If a man does not take a rest after a work, he becomes weak and spiritless.

So, we should take a rest so that we can keep fit.