Kayla has a stack of photographs that is 20 centimeters high. If each photograph is 0.04 cm thick, how many photos are there in the stack?

Rationale

There are 500 photos in Kayla's stack.

The number of photos can be calculated by dividing the total height of the stack (20 cm) by the thickness of each photograph (0.04 cm). The result is 500.

A (8) YOUR ANSWER

This answer would be correct if each photograph was 2.5 cm thick, but the thickness of each photograph is given as 0.04 cm. Therefore, this option is incorrect.

B (50) YOUR ANSWER

This answer would be correct if each photograph was 0.4 cm thick. However, the thickness of each photograph is given as 0.04 cm. Hence, this option is incorrect.

C (80) YOUR ANSWER

This answer would make sense if each photograph was 0.25 cm thick. However, the thickness of each photo is given as 0.04 cm. Therefore, this choice is not correct.

D (500) CORRECT

This is the correct answer. If each photograph is 0.04 cm thick, then 500 photographs would form a stack 20 cm high. This is derived by dividing the total height of the stack (20 cm) by the thickness of each photo (0.04 cm).

Conclusion

To find the number of photographs in Kayla's stack, one must divide the total height of the stack by the thickness of each photograph. With a stack height of 20 cm and each photograph being 0.04 cm thick, the calculation results in 500 photos. Therefore, the other options (8, 50, and 80) would only be correct if the thickness of each photograph was different, which it is not.

Kayla has a stack of photographs that is 20 centimeters high. If each photograph is 0.04 cm thick, how many photos are there in the stack?

There are 500 photos in Kayla's stack.

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test