Question

Sally has three pieces of material. The first piece is 1 yd. 2 ft. 6 in. long, the second piece is 2 yd. 1 ft. 5 in long, and the third piece is 4 yd. 2ft. 8in long. How much material does Sally have?
A. 7 yd. 1 ft. 8 in.
B. 8 yd. 4 ft. 4 in.
C. 8 yd. 11 in.
D. 9 yd. 7 in.
E. 10 yd.

Answer 1

The answer is D. 9 yd. 7 in. 

Let's sum all up:
1yd 2ft 6in + 2yd 1ft 5in + 4yd 2ft 8in

Sum inches:
6 + 5 + 8 = 19 in
12 in = 1 ft
19 in = 1ft 7in

Sum feet:
2 + 1 + 2 + 1(from inches) = 6 ft
3ft = 1yd
6ft = 2y

Sum yards:
1 + 2 + 4 + 2(from feet) = 9 yd