document.write( "Question 1086491: The average age of 5 members of a family is 21.if the age of grandfather is included, average age is increased by 8 years.age of grandfather is \n" ); document.write( "
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Avg age of 5 Members is 21, so total age is 21×5=105
\n" ); document.write( "If the GF age included avg Age increased by 8 So,
\n" ); document.write( "(21+ 8) ×(5+1)
\n" ); document.write( "=29×6 =174
\n" ); document.write( "Now subtract the new Total age from old, 174-105=69
\n" ); document.write( "age of the grandfather is 69
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