Question

Luna and Ginny each cast magic spells. The ratio of spells Luna casts to spells Ginny casts is represented in the tape diagram.

Answer 1

Answer:

Ginny will cast  2525 spells

Step-by-step explanation:

The ratio of spells Luna casts to spells Ginny casts is:

Luna :4

Ginny :5

4 spells of Luna is equivalent to 5 spells of Ginny

1 spell of Luna is equivalent to 5/4 spells of Ginny

Luna casts 2020 spells

It means Ginny will cast $2020\times \dfrac{5}{4}$ spells

i.e. Ginny will cast  2525 spells

Answer 2

Answer: If Luna casted 2020 spells, Ginny casted 2525 spells.

Step-by-step explanation:

The ratio that we have is

Luna: 4

Ginny: 5

This means that for each 4 spells that luna casts, Ginny cast 5 spells.

Now, we know that luna casted 2020 spells, now, how many groups of 4 e have here?

2020/4 = 505

This means that Luna casted froups of 4 spells 505 times, and for each of those groups, Ginny casted 5 spells, so Ginny casted:

5*505 = 2525 spells.