How to solve problems of the form a + b = x
and ab = y.
Learn how to convert the formulae and expand them to be able to solve such problems of higher order.
Best Study Notes » Quant
Another form of the time and work problems is the pipes and cistern problems, wherein the a pipe fills up a bucket or a well and another pipe or a hole removes water from the same well / bucket. Remember that in such a case, the bucket will get filled at the net rate (rate of addition less the rate of removal). They can be solved in similar fashion as a normal time and work question.
In case of the "Time and Work done" kind of problems, we know that Time and Work have a direct relationship. The more the time involved, the more will be the work done. Also, the more the people involved, the less will be the time taken. Here, when 1 person works for 1 day (as per Qustn it can be for 8 hrs or 10 hrs or 12 hrs whatever), the unit we get is 1 man day. If 2 people work for 1 day, w
Best Coaching Class Notes by Ritika1 (#3) 262 days ago (http://www.youtube.com)
How to find the units digit when the powers of a certain number are given. We need to remember that for any number (how so ever large it may be), with any large number a power, will depend on the unit digit of the original number and unit digit of the power. There is a property of cyclicity. For ex - For Number 2 the following powers tend to give the following corresponding results:
1 --> 2; 2 -
1 --> 2; 2 -
What are the various kinds of numbers - Real number, rational numbers, irrational numbers. A rational number is one which can be represented in the form p/q where p and q are integers and q is not zero. An irrational number is one which cannot be represented in this manner.
Best Coaching Class Notes by admin (#1) 462 days ago (http://www.youtube.com)
Byju's shortcut techniques for finding power cycles for numbers. A very quick method to solve complex problems.
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