Question

The relationships between the weight of three cats, Eva, Siri, and Jimmy are as follow:
Siri’s weight = 42.6 pounds
Jimmy’s weight = 10.4 pounds less than Siri’s weight
Jimmy’s weight = 0.08 pounds more than Eva’s weight
Which of the following options represents Eva’s weight?

• A. 42.6 - 10.4 + 0.08
• B. 42.6 + 10.4 - 0.08
• C. 42.6 + (10.4 - 0.08)
• D. 42.6 - 10.4 - 0.08

Answer 1

The correct option is D 42.6 - 10.4 - 0.08

Siri’s weight = 42.6 lb
Jimmy’s weight = 10.4 less than Siri’s weight

So, Jimmy’s weight = 42.6 - 10.4 = 32.2 lb.
Eva’s weight + 0.08 = Jimmy’s weight
Relating this addition to subtraction:
Jimmy’s weight - 0.08 = Eva’s weight
42.6 - 10.4 - 0.08 = Eva’s weight
Hence, the correct expression is 42.6 - 10.4 - 0.08.