The shadow of a tower on ground level is increased by 30 m, when the angle of depression by the sun changes from 60 deg to 30 deg. The height of the tower is
In the following figure, rectangle represents Engineers, circle represents Food stylists, triangle represents Potters and square represents Joggers. Which set of letters represents Joggers who are either Engineers or Food stylists?
Young Indian shuttler Pratap Singh has won which of the following series by defeating Denmark's Mads Christophersen in the finals by 21-15, 21-11 in Uppsala?