Question 345375
1.{{{G+C=90}}}
2.{{{G+S=180}}}
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.
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{{{C/S=1/4}}}
3.{{{S=4C}}}
Subtracting eq. 1 from eq. 2,
{{{G+S-G-C=180-90}}}
{{{S-C=90}}}
Substitute from eq. 3,
{{{4C-C=90}}}
{{{3C=90}}}
{{{highlight(C=30)}}}degrees
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.
{{{S-30=90}}}
{{{highlight(S=120)}}}degrees
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{{{G+S=180}}}
{{{highlight(G=60)}}}degrees
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.
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{{{highlight_green(G/S=60/120=1/2)}}}