Devaughn is 5 years younger than Sydney. The sum of their ages is45. What is Sydney's age?

Question

Mathematics

Leila Marks

23 June, 05:34

Devaughn is 5 years younger than Sydney. The sum of their ages is45. What is Sydney's age?

+2

Answers (2)

Know the Answer?

Short · Answer 1

Total age=45

devaughn is 5 years younger

45-5=40

so,

40 divided by 2 equals = 20

so each of them is 20

without remaining 5

so devaughn is 20

so sydney is 45-20=25

so, sydney is 25 years old

Clarence Holmes · Answer 2

Let the age of devaughn be x and Sydney be y.

Then, x+y=45

x+5=y

y=x+5

here,

put y=x+y in x+y=45

then,

x+y=45

x+x+5=45

2x=40

x=20

now,

y=x+5

y=20+5

y=25