John o tsaya matlakala kwa difetlhelwaneng di le tharo tse di farologaneng.  Tse pedi tsa ntlha di na le difetlhelelo di le 200 mo go nngwe le nngwe mme ya bofelo e kgolo go feta tse dingwe tse pedi ka 60% fa di kopane.  O tsaya matlakala gararo ka beke go tswa kwa lefelong lengwe le lengwe mme o duelwa $.40 ka nako nngwe le nngwe e a tsayang matlakala ka yone mo fetlhelong nngwe le nngwe.  O dira bokae ka beke?

Tyrion changes his face mask two times every time he goes out. If he goes out three times a day, how many face masks does he use every 2 days?
Difetlhelelo tse pedi tsa ntlha di na le difetlhelelo di le 200+200=<<200+200=400>>400
Ya boraro e na le difetlhelelo tse di fetang tse pedi tse di kopaneng ka 400*.6=<<400*.6=240>>240 
Ka jalo, ka kakaretso, e na le difetlhelelo di le 400+240=<<400+240=640>>640
Ka jalo o ya kwa difetlhelwaneng di le 640+400=<<640+400=1040>>1040 nako le nako
Seo se raya gore o etela difetlhelelo di le 1040*3=<<1040*3=3120>>3120 beke le beke
Ka jalo o dira $<<3120*0.4=1248>>1248 beke le beke
#### 1248 

Tyrion uses 2 x 3 = <<2*3=6>>6 face masks every day.
Therefore, the total number of face masks he uses every 2 days is 6 x 2 = <<6*2=12>>12.
#### 12