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primary 6 | Maths
| Data Analysis
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Can someone explain and show clearly Thanks !
Date Posted: 5 years ago
Views: 474
number of black circles:5
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.
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.
How about section b
by using squareroot of each total no. of circles we get the figure number which squareroot 289=17. so the black circles is 17 and white circles 289-17=272
Thank u so much
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Not sure if this is helpful because I learnt this method in secondary school. Hope u understand! :)
Date Posted:
5 years ago
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