Subject
Bank Exam
Topic
Rupali Bank 2010 (Officer)
The average of x and y is 40 and that of y and z is What is the value of x-z?
The average of x and y is 40 and that of y and z is What is the value of x-z?
ক)
10খ)
30গ)
20ঘ)
25Explanation
(x+y)/2 =40 or,x+y =80.....(1) (y+z)/2 =35 or,y+z=70 or,y =70-z by putting the value of y.we get, x+70-z=80 or,x-z=10Related questions
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