Subject
Quantitative Aptitude
Topic
Average
The arithmetic mean of 3a + 4 and another number is 2a. What is the average of the other number and a?
The arithmetic mean of 3a + 4 and another number is 2a. What is the average of the other number and a?
ক)
2aখ)
a-4গ)
a-2ঘ)
a + 2Explanation
suppose, another number is x here, 3a+4+x/2 = 2a or, 3a+4+x=4a or, x=a-4 average of , a-4+a/2 = a-2Related questions
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