Lizzy: Bea's mom planted 50 Mahogany and 30 Narra trees on their farm. Due to a typhoon, a total of 5 trees fell. One more Mahogany tree fell than the number of Narra trees that fell. A month after the typhoon, Bea's mom planted twice as much as the number of the Narra and thrice the number of Mahogany trees that fell. How many trees are now on the farm?.
Me: Hmmm, let me think. I think this is the detailed solution:
Before the typhoon, their farm had a total of 50 trees + 30 trees = 80 trees. If there was 1 more than Mahogany than Narra tree that fell, then this means there were 2 Narra trees and 2 + 1 = 3 Mahogany trees that fell during the typhoon. So, Bea's mom planted 2 trees x 2 = 4 Narra trees. She also planted 3 trees x 3 = 9 Mahogany trees. So, her mom planted 4 trees + 9 trees = 13 more trees. After the typhoon, they only had 80 trees - 5 trees = 75 trees left. Therefore, there are 75 trees + 13 trees = 88 trees now. Final answer: 88.