राजभाषा अधिनियम, 1963 की किस धारा में राजभाषा के सम्बन्ध में समिति से संबंधित उपबंध है?

Ratio of speed of boat in downstream and speed of stream is 7:3, if speed of current is 9 km/hr, then find distance travelled (in km) upstream in 6 hours.

A man can row at 2 kmph in still water. If the velocity of current is 1 kmph and it takes him 4 hour to row to a place and come back, how far is the place?

(√3364+ √484) – √2916÷ √1296 × √36 ÷ √64 = ?

A boat running downstream covers a distance of 24 km in 3 hrs while it covers the same distance upstream in 6 hrs. Then speed of the boat in still water is