Amodel ship is built to a scale of 1 cm: 4 m. the length of the model is 40 cm. what is the length of the actual ship? a. 160 m c. 40 m b. 50 m d. 15 m select the best answer from the choices provided a b c d

A. 160m. 

You can get this answer by multiplying the scale by the length of the model

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.