Saturday 11 October 2014

Pattern

Those who think that they are not very good at patterns, come look here immediately! Don't worry, with this method, solving pattern problems will be so EASY! Pattern questions usually have questions a) b) or even c).

Some questions are just like these: they give you a table and put a certain number of shapes in each figure. Then they may ask you how many of these shapes are there in figure ...
This is an eg of a simple pattern question.


So, for pattern questions,all you need to do is to find a pattern. The number of stars increased in each ascending figure. Increased by how many between the figures?
Figure 1--->3
Figure 2--->7
Figure 3--->11
There is an increase in 4 at every interval. Once you get this hint, use it!
Just remember this formula for this type of question.
FORMULA: Fig no. x every increase (interval) - a no. = no of unit shapes in the figure
So we'll use Figure 1 as an example:
Fig no. x every increase (interval) - a no. = no of unit shapes in the figure
 1x4-?=3
 ?=1
 Figure 2(using this formula)
 2x4-1=7!

After getting the formula for each question, solving pattern questions will be a breeze!

The answer:
a)15x4-1=59
b)Work backwards. Instead of minusing 1,add 1. Instead of times 4 , divide 4 .
  2219+1=2220
  2220/4=555

Ans:a)59 stars
       b)Pattern no.555

 

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