Question
Train M, ‘x’ metres long crosses (x – 34) metres
long platform in 15 seconds while train N having the length (x + 34) metres crosses the same platform in 20 seconds. If the speeds of both trains are same then find the value of ‘x’.Solution
Total distance travelled by train M = (2x – 34) m Total distance travelled by train N = (x + 34 + x – 34) = 2x m According to question, => (2x – 34)/15 = 2x/20 => 40x – 680 = 30x => 10x = 680 => x = 68 m
The sky appears blue because of –
Which of the following is the active component of the air?
Which of the following methods is suitable for preventing an iron frying pan from rusting?
The shape of methane (CH₄) molecule is:
The Doppler Effect occurs in:
Which of the following gas is used in anesthesia?
A wire is bent into a circular loop. If current is passed through it, which one of the following statements is valid?
Which of the following reproduces using fission?
Which of the following gases in the atmosphere is/are responsible for acid rains?
1. Oxides of Sulphur
2. Oxides of nitrogen
3. Oxi...
Which part of the human brain controls voluntary actions?
Relevant for Exams:
