Extra number of which chromosome is responsible for Down’s syndrome (Mongoloid Idiot) in man.
Down syndrome is a complex set of pathologies caused by an extra copy of human chromosome 21 (Hsa21).
A man travels 450 km to his home partly by train and partly by car. He takes 8 hrs 40 minutes if he travels 240 km by train and rest by car. He takes 20...
A person travels from the hostel to the college at a speed of 10 kmph on the bicycle and reaches a 4.5-minute delay. If he runs a bike with a speed of 2...
A carriage travelling in fog passed along a man who was walking @ 6 km/hr in the same direction. He could see the carriage for 8 minutes and it was visi...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 27 km/hr and 15 km/hr, respectively. If the distance covered by ‘Aâ...
The speed of a bike increases by 4 km/hr after every 1 hour. If the distance travelled by the bike in 1st hour is 27 km, the find the total distance tra...
A boy goes to school at 9 km/Hr and return at a speed of 8 km/hr. If he takes 17 hrs in all. Find the distance from his village to school?
The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 22 km/hr and 33 km/hr, respectively. If the distance covered by ‘Aâ...
A truck covers 376 km at a certain speed in 8 hours. How much time would a car take at an average speed of 13 km/h more than that of the speed of the tr...
A train moving at 3/5th of its normal speed reaches its destination 10 hours late. Find the normal time taken by it.
