Bright Zoom Maths

Problems on Trains - Aptitude Questions and Answers part -2  This is aptitude questions and answers section on "Problems on Trains" with explanation for various interview, competitive examinations and entrance tests. Candidates can practice the Problems on Trains Quiz, Problems on Trains MCQ, Problems on Trains Aptitude Questions, Problems on Trains Multiple Choice Questions and Answers from the below section. Problems on Trains Questions - Problems on Trains Quiz Details Test Name:   Problems on Trains Exam Type:  Multiple Choice Questions Category : Aptitude Quiz Number of Questions :  77 Problems on Trains Formulae: 1. km/hr to m/s conversion a km/hr = (a x5/18) m/s 2. m/s to km/hr conversion  a m/s = (a x18/5) km/hr 6. A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform? A. 120 m B. 240 m C. 300 m D. None of these Answer & Explanation A...

Problems on Trains - Aptitude Questions and Answers part -1 This is aptitude questions and answers section on "Problems on Trains" with explanation for various interview, competitive examinations and entrance tests. Candidates can practice the Problems on Trains Quiz, Problems on Trains MCQ, Problems on Trains Aptitude Questions, Problems on Trains Multiple Choice Questions and Answers from the below section. Problems on Trains Questions - Problems on Trains Quiz Details Test Name:   Problems on Trains Exam Type:  Multiple Choice Questions Category : Aptitude Quiz Number of Questions :  77 Problems on Trains Formulae: 1. km/hr to m/s conversion a km/hr = (a x5/18) m/s 2. m/s to km/hr conversion a m/s = (a x18/5) km/hr 1. The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is: A. 200 m B. 225 m C. 245 m D. 250 m Answer & Explanation Answer: Option C Explanation: Speed = [45 X 5/18] m/sec  = [25/2] m/sec Time...

Aptitude Solved Problems What is the length of the platform? 1. A man purchased a bicycle for Rs. 4800 and sold it immediately at Rs. 5995, allowing the buyer a credit of one and a half years. If the rate of interest is 6%, then find the man gains? Answer: Rs. 700 Explanation: Amount = Rs. 4800 Selling price ( Present Worth of Rs. 5995 due 1.5 years ) = ( Amount * 100 ) / ( 100 + ( Rate * Time )) = ( 5995 * 100 ) / ( 100 + ( 6 * 1.5 )) = ( 5995 * 100 ) / ( 100 + 9 ) = ( 5995 * 100 ) / 109 = 55 * 100 = 5500 Gain = Selling Price - Cost price = 5500 - 4800 = Rs. 700 ∴ Gain of the man is Rs. 700. 2. Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of solution R in the liquid in the tank after 3 minutes? Answer: 6 : 11 Explanation: Part filled by ( A + B + C ) ...