ling ▁of ▁multi ples ▁bet s . ▁ ▁Full ▁cover ▁bet s ▁with ▁singles ▁ ▁Pat ent ▁ ▁Returns ▁( 3 ▁singles ) ▁= ▁£ 2 ▁× ▁[( 4 / 6 ▁+ ▁ 1 ) ▁+ ▁( 2 / 1 ▁+ ▁ 1 ) ▁+ ▁( 1 1 / 4 ▁+ ▁ 1 )] ▁= ▁£ 1 6 . 8 3 ▁ ▁Returns ▁( 3 ▁doubles ) ▁= ▁£ 2 ▁× ▁[( 4 / 6 ▁+ ▁ 1 ) ▁× ▁( 2 / 1 ▁+ ▁ 1 ) ▁+ ▁( 4 / 6 ▁+ ▁ 1 ) ▁× ▁( 1 1 / 4 ▁+ ▁ 1 ) ▁+ ▁( 2 / 1 ▁+ ▁ 1 ) ▁× ▁( 1 1 / 4 ▁+ ▁ 1 )] ▁= ▁£ 4 5 . 0 0 ▁ ▁Returns ▁( 1 ▁tre ble ) ▁= ▁£ 2 ▁× ▁( 4 / 6 ▁+ ▁ 1 ) ▁× ▁( 2 / 1 ▁+ ▁ 1 ) ▁× ▁( 1 1 / 4 ▁+ ▁ 1 ) ▁= ▁£ 3 7 . 5 0 ▁ ▁Total ▁returns ▁= ▁£ 9 9 . 3 3 ▁ ▁Pat ent , ▁L ucky ▁ 1 5 , ▁L ucky ▁ 3 1 , ▁L ucky ▁ 6 3 ▁and ▁higher ▁L ucky ▁bet s ▁form ▁a ▁family ▁of ▁bet s ▁known ▁as ▁full ▁cover ▁bet s ▁with ▁singles ▁which ▁have ▁all ▁possible ▁multi ples ▁present ▁together ▁with ▁single ▁bet s ▁on ▁all ▁se lections . ▁An ▁examples ▁of ▁a ▁winning ▁Pat ent