Instructions

For the following questions answer them individually

Question 3

A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be - (take g = 10 m/s$$^2$$)

Question 6

Yayati sold an item at a loss of 13%. If he had sold it for â‚¹ 49 more, he would have made a profit of 22%. Whatshouldbe the selling price of the item to gain a profit of 30%?

Question 7

If two Coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it?

Question 8

From a solid cube of side 7cm, a conical cavity of height 7cm and radius 3cm is hollowed out. Find the volume of remaining solid?

Question 9

In how many test matches did Ravichandran Ashwin achieve the feat of becoming the

fastest player in the world (in terms ofnumber of matches) to get 300 wickets in test cricket in November 2017?