Bright Zoom Maths

Different types of Number Series Aptitude Notes Number Series What is Number Series? Number series is a arrangement of numbers in a certain order, where some numbers are wrongly put into the series of numbers and some number is missing in that series, we need to observe and find the accurate number to the series of numbers. In competitive exams number series are given and where you need to find missing numbers. The number series are come in different types. At first you have to decided what type of series are given in papers then according with this you have to use shortcut tricks as fast as you can . Different types of Number Series There are some format of series which are given in Exams. Perfect Square Series: This Types of Series are based on square of a number which is in same order and one square number is missing in that given series. Example :   1. 441, 484, 529, 576? Answer:  441 = 21^2, 484 = 22^2,  529 = 23^2, 576 = 24^2 ,  625 = 25^2. Perfect Cube Series:...

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...

Logical Reasoning Logical Deductions 1. Statement: Raman is always successful. No fool is always successful. Conclusions: I. Raman is a fool II. Raman is not a fool A. Only I follows B. Only II follows C. Either I or II follows D. Both I and II follow Answer : B. Only II follows Explanation :  Since both the premises are universal and one premise is negative, the conclusion must be universal negative and should not contain the middle term. So, II follows.  2. Statement: All trucks fly. Some Scooters fly. Conclusions: I.All trucks are scooters II. Some scooters do not fly A. Only I follows B. Only II follows C. Neither I nor II follows D. Both I and II follow Answer : C. Neither I nor II follows  Explanation :  Since the middle term "fly" is not distributed even once in the premises, so no definition conclusion follows 3. Statement: All grasses are trees. No tree is shrub. Conclusions: I. No grasses are shrubs. II. Some shrubs are grasses. A. Only conclusion I follo...