Question

1/2 - 1/4- 1/8 - 1/16- 1/32 - 1/64 = ?

• A. 1/32
• B. 1/16
• C. 3/16
• D. 1/64

Answer 1

Answer:

D. 1/64

1. 1/2 - 1/4- 1/8 - 1/16- 1/32 - 1/64

2. 32/64 - 16/64 - 8/64 - 4/64 - 2/64 - 1/64

3. (32 - 16 - 8 - 4 - 2 - 1) / 64

   = (16 - 8 - 4 - 2 - 1) / 64

   = (8 - 4 - 2 - 1) / 64

   = (4 - 2 - 1) / 64

   = (2 - 1) / 64

   = 1/64