 
 <translate> First, multiply the number of forest trolls by 4: 6 trolls * 4 = 24 trolls. Then subtract 6 from that number to find the number of bridge trolls: 24 trolls - 6 trolls = 18 trolls. Then divide that number by 2 to find the number of plains trolls: 18 trolls / 2 = 9 trolls. Then add the number of trolls she saw in each location to find the total number: 6 trolls + 18 trolls + 9 trolls = 33 trolls.
The final answer: 33. <hau> Na farko, ninka adadin gandun daji da 4: 6 trolls * 4 = 24 trolls. Sa'an nan ka cire 6 daga wannan lambar don samun adadin dodanni masu gadar: dodanni 24 - dodanni 6 = dodanni 18. Sa'an nan ka raba wannan lambar da 2 don samun adadin dodanni na filayen: dodanni 18 / 2 = dodanni 9. Sai kuma ta ƙara adadin dodanni da ta gani a kowane wuri don samun jimillar: dodanni 6 + dodanni 18 + dodanni 9 = dodanni 33. Amsar ita ce: 33. 