Question
Aman travels from town ‘X’ to town ‘Y’. If he
drives at 60 km/h, he arrives 36 minutes early. If he drives at 40 km/h, he reaches 45 minutes late. What is the distance between town ‘X’ and town ‘Y’?Solution
Let the distance between town ‘X’ and town ‘Y’ be ‘d’ km Let the correct time to travel be ‘t’ hours According to the question, (d/40) = t + 0.75 And, (d/60) = t - 0.6 Or, (d/40) - (d/60) = 0.75 + 0.6 = 1.35 Or, (3d - 2d) ÷ 120 = 1.35 Or, d = 1.35 × 120 = 162 Therefore, distance between town ‘X’ and town ‘Y’ is 162 km.
How does air pollution affect living organisms?
1. Sulphur dioxide irritates the respiratory tissues.
2. Nitrogen oxides, especially ...
The principle policy of the state is taken from the constitution of which country?
P. Q, R, S, T, U, V and W are sitting in a row facing North. P and S are neighbours; W is a neighbour of both Q and U; T is a neighbour of R and V. If t...
Which of the following was the first B vitamin discovered in 1897?
Which of the following is the strongest base?
The Koraput Revolution occurred in _________ during the Quit India Movement.
The Securities and Exchange Board of India (SEBI) announced a crucial reduction in the time period for listing shares in public issues from _________. (...
Amir Khusrau was born at ___________ in Uttar Pradesh.:
The crops sown during the winter season are called _____________ crops.
Which of the following is NOT a correct match?
Relevant for Exams:
