Marcel o rekisa dibaesekele.  Mefuta e megolo e meraro e a e rekisang ke:  MTB, BMX, le Trekking. Theko ya baesekele e le nngwe ya MTB ke $500, BMX ke halofo ya theko ya MTB, mme baesekele ya Trekking ke $450.  Mo kgweding e le nngwe, Marcel o rekisitse dibaesekele di le 300 mo gare ga mefuta e e umakilweng. Halofo ya tsona e ne e le dibaesekele tsa Trekking, mme 15% e ne e le dibaesekele tsa BMX.  Dibaesekele tse di setseng tse di rekisitsweng e ne e le tsa mofuta wa MTB.  Marcel o ne a bona bokae ka go rekisa dibaesekele mo kgweding eo?

If Sam and Harry have 100 feet of fence between them, and they agree to split it with Harry getting 60 feet more than Sam, how much is left over for Sam?
Sa ntlha, a re baleng theko ya baesekele ya BMX e leng halofo ya theko ya MTB e le nngwe, ka jalo ke 500 * 0.5 = $<<500*0.5=250>>250.
Halofo ya dibaesekele tse di rekisitsweng e ne e le tsa Trekking, se se rayang gore ke dibaesekele di le 300 * 0.5 = <<300*0.5=150>>150.
15% ya dibaesekele tse di rekisitsweng e ne e le tsa BMX, se se rayang gore ke dibaesekele di le 300 * 15/100 = <<300*15/100=45>>45.
Dibaesekele tse di setseng tse di rekisitsweng e ne e le tsa mofuta wa MTB mme go ne go na le dibaesekele di le 300 - 150 - 45 = <<300-150-45=105>>105 tsa mofuta o o rekisitsweng.
Seo se raya gore Marcel o bonye 150 * 450 = $<<150*450=67500>>67500 ka dibaesekele tsa Trekking. 
Gape o bonye 45 * 250 = $<<45*250=11250>>11250 ka dibaesekele tsa BMX.
Dibaesekele tsa MTB di mo neetse 105 * 500 = $<<105*500=52500>>52500.
Ka kakaretso Marcel o bonye 67500 + 11250 + 52500 = $<<67500+11250+52500=131250>>131250 mo kgweding eo. 
#### 131250 

Let x be the amount of fence Sam gets and y be the amount Harry gets. We know that y = x + 60, and y + x = 100.
Substituting the first equation into the second equation, we get 2x+60=100
Subtracting the 60 from both sides, we get 2x=40
We divide each side by two, leaving x=20. This means Sam has 20 feet of fence left over.
#### 20