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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Let the greater part be x and the smaller part be y.. therefore, x=4y (since greater part is four times the smaller part) and x+y=80 (since the parts are of 80) now solve the simultaneous eq.s 4y+y=80(since x=4y) 5y=80 y=16 therefore x=4*16 x=64

The ratio between the numbers would be x:4x since one number is 4 times the other, and the total is 80. this means x+4x=80. solve using axioms: x+4x=80 1x+4x=80 5x=80 5x/5=80/5 x=16

We have found that the cancellation is 10. therefore: smallest number = 16 × 1 = 16 greatest number = 16 × 4 = 64