Mathematics is a science that created from the examination of geometric figures and processing with numbers. For science, there is no generally acknowledged definition; today it is typically depicted as a science that researches dynamic structures that it made itself by legitimate definitions utilizing rationale for their properties and examples. It is a science of structure,… Read More »
What is Number System? A system in which we study different types of numbers, their relationship and rules govern in them is called a number system. Face value and Place value in a number Face value: In a numeral, the face value of a digit is the value of the digit itself irrespective of its… Read More »
1.A and B can do a work in 12 days, B and C in 15 days and C and A in 20 days. If A, B and C work together, they will complete the work in : A.5 days B. 6 days C. 10 days D. 15 days [SSC-99,03,06,11,13] 2.A particular job can… Read More »
1.A 180 meter long train crosses a man standing on the platform in 6 second. What is the speed of the train? [BSRB Calcutta-95] A. 90 km/hour B. 108 Km / hour C. 120 km / hour D. 88 km / hour. 2. A train takes 18 seconds to pass through a station,162 m. long… Read More »