{b₂+b₄+b₆=99.75
{b₁+b₃+b₅=66.5
{b₁q+b₁q³+b₁q⁵=b₁q(1+q²+q⁴)=99.75
{b₁+b₁q²+b₁q⁴=b₁(1+q²+q⁴)=66.5
разделим
q=99.75/66.5=1.5
ответ 8;12;18;27;40.5;60.75
{b₁+b₃+b₅=66.5
{b₁q+b₁q³+b₁q⁵=b₁q(1+q²+q⁴)=99.75
{b₁+b₁q²+b₁q⁴=b₁(1+q²+q⁴)=66.5
разделим
q=99.75/66.5=1.5
ответ 8;12;18;27;40.5;60.75