## Riddle of 4 persons crossing a bridge over a river at night within 17 minutes

Bridge Crossing Riddle: 4 persons to cross a bridge at night in 17 mins. Two persons can cross at a time with crossing speeds of each different. Read on...

*This year would surely bring new lights in your life. Happy new year to you all the time.*

Submitted by Atanu Chaudhuri on Sun, 15/11/2020 - 17:52

Submitted by Atanu Chaudhuri on Thu, 12/11/2020 - 18:34

Move 2 sticks in the figure with 5 squares to create 7 squares. Recommended time is 10 minutes. Use reasoning based on matchstick concepts and techniques. The solution of the stick puzzle ends with derivation of model of problem solving and innovation...

Submitted by Atanu Chaudhuri on Wed, 01/07/2020 - 22:14

This is the 91st Solved question set of 10 questions and solutions for SSC CGL on Surds and indices. The answers and detailed solutions follow the questions. First try to solve the questions yourself and then go through the solutions. All problems are solved by specially quick methods based on discovered patterns...

Submitted by Atanu Chaudhuri on Mon, 17/02/2020 - 16:24

2nd set of surds and indices questions for SSC CHSL with answers and quick solutions by surds techniques. These are previous year SSC CHSL questions.

Submitted by Atanu Chaudhuri on Tue, 20/11/2018 - 15:49

This is the 2nd solution set of 10 practice problem exercise for Bank PO exams and 2nd on topic Permutation and Combination. Students must complete the corresponding question set in prescribed time first and then only refer to this solution set for gaining maximum benefits from this resource...

Submitted by Atanu Chaudhuri on Tue, 11/04/2017 - 10:12

This is the 61st solution set of 10 practice problem exercise for SSC CGL exam and 5th on topic fractions indices and surds. Students must complete the corresponding question set in prescribed time first and then only refer to this solution set for extracting maximum benefits from this resource...

Submitted by Atanu Chaudhuri on Tue, 04/04/2017 - 16:08

This is the 59th solution set of 10 practice problem exercise for SSC CGL exam and 3nd on topic fractions, square roots and surds. Students must complete the corresponding question set in prescribed time first and then only refer to this solution set for extracting maximum benefits from this resource...

Submitted by Atanu Chaudhuri on Thu, 09/03/2017 - 16:56

In this session of efficient math problem solving we will show how a difficult SSC CGL level percentage problem can be solved in seconds by using very basic number domain concepts along with basic percentage concepts...

Submitted by Atanu Chaudhuri on Sun, 05/03/2017 - 15:54

The conventional approach to math problem solving relies heavily on manipulation of terms using low level mathematical constructs without using the problem solving abilities of the student. Following only this approach to solving problems, students may tend to become used to mechanical and procedural thinking suppressing their inherent creative and innovative out-of-the-box thinking abilities. On the other hand, conceptual reasoning without firm mathematical base leads to confusion. In solving hard problems you need to strike a balance. In this third session on hard problem solving we have shown again how to do it...

Submitted by Atanu Chaudhuri on Fri, 03/03/2017 - 13:48

The conventional approach to math problem solving relies heavily on manipulation of terms using low level mathematical constructs without using the problem solving abilities of the student. Following only this approach to solving problems, students may tend to become used to mechanical and procedural thinking suppressing their inherent creative and innovative out-of-the-box thinking abilities. On the other hand, conceptual reasoning without firm mathematical base leads to confusion. In solving hard problems you need to strike a balance...