Let the speed of boat in still water be a km/hr and that of stream be b km/hr. Therefore, 36/(a + b)= 3 ⇒ a + b = 12 ………..(i) 36/(a – b)= 4 ⇒ a + b = 9 ………..(ii) On adding, eq (i) and (ii) ⇒ 2a = 21 km/hr ⇒ a = 10.5 km/hr
Which are true examples of formal garden?
Which among the following is generally known as twin deficit?
Which soil structure type is characterized by the arrangement of particles into thin, flat plates that lie horizontally?
Which nematode is known as cyst nematode?
The vitamin which helps in the conversion of Tryptophan to Niacin is:
Tree banding is done in mango trees to control ______ insect pest.
Which type of lifecycle is observed in thrips?
Average gestation period of cow is:
Bengal famine (1943) was caused due to ____ disease which attacked ____ crop.
Which is the trade name of flufenoxuron insecticide?
