Subject
Quantitative Aptitude
Topic
Average
The average of three numbers is 6 and the average of four numbers including the previous three is 8. What is the half of the fourth number?
The average of three numbers is 6 and the average of four numbers including the previous three is 8. What is the half of the fourth number?
ক)
8খ)
7গ)
6ঘ)
12Explanation
তিনটি সংখ্যার সমষ্টি = ৬*৩= ১৮ ঐ তিনটি সহ মোট চারটি সংখ্যার সমষ্টি= ৮*৪= ৩২ চতুর্থ সংখ্যা= ৩২-১৮= ১৪ চতুর্থ সংখ্যার অর্ধেক= ১৪*১/২= ৭Related questions
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