[{"question":"Zmie\u0161ame 5 l vody teplej 24\u00b0C s 20 l vody teplej 60\u00b0C. Ak\u00e1 bude v\u00fdsledn\u00e1 teplota?","answers":["52,8\u00b0C","42\u00b0C","44\u00b0C","54\u00b0C"],"correct":"52,8\u00b0C","order":"1"},{"question":"Ko\u013eko l vody teploty 80\u00b0C prid\u00e1me do 12 l vody teploty 20\u00b0C, aby mala teplotu 30\u00b0C?","answers":["3 l","3,2 l","4,2 l","2,4 l"],"correct":"2,4 l","order":"2"},{"question":"Do 4 l 90% liehu pridali 5 l vody. Ak\u00fa koncentr\u00e1ciu mala zmes?","answers":["45 %","40 %","50 %","55 %"],"correct":"40 %","order":"3"},{"question":"Ko\u013eko l 20% liehu treba prida\u0165 do 4 l 80%, aby zmes mala 40%?","answers":["3 l","8 l","2.5 l","6 l"],"correct":"8 l","order":"4"},{"question":"Do 8 l vody sme pridali 4 l 60% liehu. Ko\u013eko % zmes sme dostali?","answers":["30 %","18 %","20 %","45 %"],"correct":"20 %","order":"5"},{"question":"Do ko\u013eko l vody teplej 12\u00b0C mus\u00edme prida\u0165 vodu tepl\u00fa 60\u00b0C, aby sme dostali 40 l teploty 36\u00b0C?","answers":["20 l","24 l","18 l","32 l"],"correct":"20 l","order":"6"},{"question":"Zmie\u0161ame 5 kg k\u00e1vy po 8\u20ac a 3 kg k\u00e1vy po 6\u20ac. Ko\u013eko bude st\u00e1\u0165 kg zmesi?","answers":["7 \u20ac","7.5 \u20ac","7.25 \u20ac","6.75 \u20ac"],"correct":"7.25 \u20ac","order":"7"},{"question":"Ko\u013eko kg cukr\u00edkov po 10\u20ac prid\u00e1me do 4 kg po 8\u20ac, aby kg zmesi st\u00e1l 9,5\u20ac?","answers":["12 kg","8 kg","10 kg","9 kg"],"correct":"12 kg","order":"8"},{"question":"Do 2 kg \u010daju po 15\u20ac prid\u00e1me 4 kg \u010daju. Dostaneme zmes po 12\u20ac. Ko\u013eko stoj\u00ed kg druh\u00e9ho \u010daju?","answers":["10 \u20ac","8.5 \u20ac","12 \u20ac","10.5 \u20ac"],"correct":"10.5 \u20ac","order":"9"},{"question":"Do k\u00e1vy po 12\u20ac zamie\u0161ame k\u00e1vu po 20\u20ac, dostaneme 10 kg zmesi po 15\u20ac. Ko\u013eko ktorej k\u00e1vy sme zmie\u0161ali?","answers":["4,5 kg po 12\u20ac a 5,5 kg po 20\u20ac","3,75 kg po 20\u20ac a 6,25 kg po 12\u20ac","3,75 kg po 12\u20ac a 6,25 kg po 20\u20ac","4,5 kg po 20 \u20ac a 5,5 kg po 12\u20ac"],"correct":"3,75 kg po 20\u20ac a 6,25 kg po 12\u20ac","order":"10"}]