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A ,B ,C , are three angles of a triangle...

`A ,B ,C ,` are three angles of a triangle. If `A-B=15^@,B-C=30^@,` find `/_A ,/_B` and `/_C`

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given `/_A-/_B=15^@`
implies `/_A=/_B+15^@`
`/_B-/_C=30^@`
implies `/_C=/_B-30^@`
from traingle sum `/_A+/_B+/_C=180^@`
`(/_B+15^0)+/_B+(/_B-30^@)=180^@`(from above equation)
`/_B=65^@`
`/_A=80^@`
`/_C=35^@`
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