Mr martin has 36 calculators in a box . the ratio of ordinary calculators to scientific is 5 : 1 how many of each calculator does he have ?me : )

First you add the ratio together like so: 5+1=6. Then, you divide 36 by that number: 36÷6=6
Now, use use this multiplier and times it by both ratios, so:
ordinary= 6×5=30
scientific= 6×1=6
There are 6 scientific calculators in the box

The answer is a because i went through all the other ones that it didn’t come out right

25% increaseplus i think decrease i only know increase: ((