Lindsay o tlhatswetsa diaparo, mme o akanya gore go na le dikausu tse di mo latlhegelang. Go na le dikausu di le 50 tse di tlhokang go tlhatswiwa. Fa a tlhatswetsa diphere di le 10 tsa dikausu le dikausu tse di sa pharaganang di le 15, ke dikausu di le kae tse di latlhegetseng Lindsay? 

There are 40 pupils in a class. Half of the class likes blue. One-fourth of the remaining likes green and the rest likes yellow. How many pupils like the color yellow?
Fa re aroganya diphere re bona gore go na le diphere di le 10 tsa dikausu * dikausu di le 2 mo phereng = <<10*2=20>>20 dikausu tse di pharilweng mmogo.
Seno se raya gore o tlhatswitse palo yotlhe ya dikausu tse di pharilweng di le 20 + dikausu tse di sa pharaganang di le 15 = <<20+15=35>>35 dikausu.
Ka jalo o latlhegetswe ke dikausu di le 50 – dikausu di le 35 = <<50-35=15>>15 dikausu.
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There are 40/2 = <<40/2=20>>20 pupils who like blue.
So, there are now 40 - 20 = <<40-20=20>>20 pupils who like either green or yellow.
Hence, 20/4 = <<20/4=5>>5 pupils like green.
Thus, 20 - 5 = <<20-5=15>>15 pupils like yellow.
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