Question

What is the average cost of 7 articles if 3 of them cost 30k each and the rest cost 12.5k each ​

Answer 1

`{\bold{\red{\huge{\mathbb{QUESTION}}}}}`

what is the average cost of 7 articles if 3 of them cost 30k each and the rest cost 12.5k each

`\bold{ \red{\star{\blue{GIVEN }}}}`

TOTAL NUMBER OF ARTICLE= 7

ARTICLES FOR 30K = 3

ARTICLES FOR 12.5K = 7-3= 4

`\bold{\blue{\star{\red{TO \: \: FIND}}}}`

Average cost of 7 articles

`\bold{ \green{ \star{ \orange{FORMULA \: USED}}}}`

`\red{AVERAGE = (TOTAL \: COST)/( NUMBER \: OF\: ARTICLES )}`

`\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}`

`Average \: cost \: of \: 7 \: articles - > \\ ((3 * 30k) + (12 .5k * 4))/(7) \\ (90k + 50k)/(7) \\ (140k)/(7) \\ \blue {Average \: cost \: of \: 7 \: articles - >} \\ 20k`