Question
Samantha travels to her college at 6 km/h and returns at
4 km/h. If her total travel time is 7 hours and 30 minutes, what is the distance between her home and college?Solution
ATQ, Let Speed = Distance/Time Let the required distance = 'd' km d/6 + d/4 = 15/2 (2d + 3d)/12 = 15/2 5d/12 = 15/2 d = 15/2 × 12/5 d = 18 km
What is the most common type of cancer worldwide?
- Which organ produces insulin?
Which of the following gas is found in the Stratosphere ?Â
Extra number of which chromosome is responsible for Down’s syndrome (Mongoloid Idiot) in man.
Which blood group has no antibodies?
White phosphorus is stored in which of the following substances?
- Which vitamin deficiency causes night blindness?
Smack (heroin) is derived from which plant?
The normal pH of human blood is approximately:
Animals from Class________are warm-blooded animals.