Question

यदि 5,3,0.5,4.5,b,8.5,9.5 की माध्यिका 7 है,तो b का मान होगा?​

Answer 1

average=sum of all no. /2

then b=?

where no. are 5,3,0.5,4.5,b,8.5,9.5

sol- a=sum of all no./2

7=5+3+.5+4.5+b+8.5+9.5/2

7*2=31+b

14-31=b

-17=b

so the value of b is -17

b का मान -१७