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It assesses knowledge in subjects relevant to the candidate’s chosen course of study.","tags","utme jamb joint admission matriculation board unified tertiary matriculation examination nigeria africa","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",5,"createdOn",1755987353430,"updatedOn","questionsCount",29915,"courseCount",20,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":415,"_416":417,"_263":370,"_418":419,"_420":421,"_110":426},"q269D6huHgxuoyTKNOldM5YydjUKnc","q","The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number","ans",[414],3,"1990","course","mathematics","exp","Mean of 10 numbers = 16
\n
\nThe total sum of numbers = 16 x 10 = 160
\n
\nMean of 11 numbers = 18
\n
\nTotal sum of numbers = 11 x 18
\n
\n= 198
\n
\nThe 11th no. = 198 - 160
\n
\n= 38","opts",[422,423,424,425],"3","16","18","38",35,"35","initComment","initReply","actionData","errors"]

JAMB - Mathematics (1990 - No. 35)

Explanation

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