Question

Heather is building a ladder for her treehouse. She will need 13 feet of lumber for each stilt and 2 feet of lumber for each rung on the ladder. How many feet of lumber does she need for a ladder with 2 stilts and 12 rungs?

A. 29 feet because 2+13+12+2=29

B. 50 feet because 2(13)+12(2)=50

C. 160 feet because 13(12)+2(2)=160

D. 210 feet because (2+13)(12+2)=210

Answer 1

13 ft for each stilt.....and she needs 2 of them.....and 2 ft for each rung...and she needs 12 of them...

13(2) + 2(12) = 26 + 24 = 50 ft <===

Answer 2

B is correct. (2 x 13' per stilt) + (12 x 2' per rung) = 50' total