Aclothing retail purchased clothes in bulk from wholesaler for 27,790 what is discount of 10% on purchase

25,011 dollars yourwelcome

What grade is this ?? Because I think I’ve done a question like this

1cm : 5 m
convert 1 cm to m. Therefore:
0.1 m: 5m

and the length of the model is 30cm which is 0.3 m

so:

0.1: 5
0.3: X

Now, cross multiply

0.1 multiplied by x and 0.3 multiplied by 5
0.1x : 1.5

(divide by o.1 to get x)

0.1x/o.1 : 1.5/0.1

x= 15 m so d is the answer