Question
Vikas increases his speed to (8/5) times of his original
speed and reaches his school 30 min before the usual time. Find the usual time taken by him to reach the school.Solution
Let the speed of the boy be V and time taken by the boy to reach his school be T. Speed of the boy after increase = 8/5 V Time taken by the boy to reach his school after increase in speed = T – 30 Since distance is same for both cases. ∴ Distance = VT = 8/5 V (T – 30) 8/5 T – T = 48 T = 48 × 5/3 = 80 minutes
How many gold medals did India win in the Asian Junior Boxing Championship 2021 in Dubai?
In which country the E-commerce and Technology conglomerate Alibaba located?
Which one of the following attributes is required for internal linking in HTML?
Which Article of the Constitution of India provides that ‘there shall be a Vice President of India’?
Which of the following events was conducted by the Ministry of Ayush, GoI to mark the 100-day countdown to the International Day of Yoga 2022?
Which of the following is true about respiration?
Who was the fourth President of India?
With which of the following companies has ISRO collaborated with to strengthen research and development of NaviC messaging service?
The writ by which a High Court or the Supreme Court can secure the body of a person who has been imprisoned to be brought before it is
Which of the following is correct?
