James o batla go rekela barwa ba gagwe ba babedi dikerese tsa letsatsi la botsalo. Ngwana wa mosimane wa ntlha o na le dingwaga di le 12 mme yo mongwe o mmotlana ka dingwaga di le 4.  Sepakete se le sengwe sa dikerese di le 5 se ja R3.  James o tla dirisa bokae ka dikerese? 

If Mark weighs 150 pounds and Susan weighs 20 pounds less than Mark.  And their friend Bob weighs twice as much as Susan.  What is the average weight of the 3 friends?
Ngwana wa gagwe yo mmotlana o na le dingwaga di le 12-4=<<12-4=8>>8
Ka jalo o tlhoka dikerese di le 12+8=<<12+8=20>>20
Go raya gore o tlhoka dipakete tsa dikerese di le  20/5=<<20/5=4>>4
Tlhwatlhwa ya tsotlhe ke R4*3=<<4*3=12>>12
#### 12 

Susan weighs 150 pounds - 20 pounds = <<150-20=130>>130 pounds.
Bob weighs 2 * 130 pounds = <<2*130=260>>260 pounds.
The friends total weight is 150 + 130 + 260 pounds = <<150+130+260=540>>540 pounds.
The friends' average weight is 540 pounds / 3 = <<540/3=180>>180 pounds.
#### 180