Question
A Boy plants a bomb at a place in Diwali and starts
running at 30 m/s. After 54 seconds the bomb was blast. In how much time the sound of blast will be listen by the boy, if the speed of sound is 300 m/s.Solution
Speed of Boy = 30 m/s Speed of sound of Bomb = 640 m/s Distance travelled by a Boy in 54 seconds = (30 × 54) m The time taken by the sound of blast to be listen by him T = D/S = (30 ×54)/(Relative Speed ) = `[(30xx54)/(300-30)]` = `(30xx54)/270` = 6 seconds
What is the position of P with respect to her sister?
Six persons are sitting in two straight rows, facing north. Their names are A, B, C, D, E and F. A and F are sitting at diagonally opposite ends. B is i...
Which of the following statement is not true before the final arrangement?
Which of the following statements is definitely false?
Six friends are sitting in a straight line. E is 4th from the right. E is between B and D. A is adjacent to B. D is adjacent to C. D is between E and C....
Five friends, D, E, F, G and H, are sitting in a straight line. D and E are adjacent to each other. E is between D and F. D is third to the left of G. G...
Who among the following person sits fourth to the left of G?
What is the position of F with respect to H?
Who among the following person sits opposite to H?
X has tuition centre in which place?
Relevant for Exams:
