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primary 6 | Maths
| Data Analysis
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Can someone explain and show clearly Thanks !
number of white circles:20
total number of circles:25
since the question ask to build the shape in increasing order we must make the fifth shape by making 5 black circles. in order to get white circles we multiply 5 by 4 which is equal to 20. this is equal to no. of black circles for 1,2,3,4 which for black circles you multiply by white circle previous no.
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