Jennie o thusa kwa ofising ya ga mmaagwe. O na le mokoa wa makwalawa a le 60 a tlhokang dithempu, le mokoa wa makwalawa a setse a na le dithempu. O  beile dithempu mo go nngwetharong ya makwalawa a a tlhokang dithempu. Fa e le gore jaanong go na le makwalawa a le 30 mo mokoeng wa a a setse a na le dithempu, a ne a le makae kwa tshimologong pele ga a dira?

Jennie is helping at her mom's office. She has a pile of 60 letters needing stamps, and a pile of letters already stamped. She puts stamps on one-third of the letters needing stamps. If there are now 30 letters in the pile of already-stamped letters, how many were in that pile when Jennie began?
O beile dithempu mo makwalaweng a le 60/3=<<60/3=20>>20.
Go raya gore go ne go na le makwalawa a le 30-20=<<30-20=10>>10 mo mokoeng wa a a setse a na le dithempu kwa tshimologong.
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She stamped 60/3=<<60/3=20>>20 letters.
Then there were 30-20=<<30-20=10>>10 in the already-stamped pile to begin with.
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