Question

if x is 1000 digit number, y is the sum of its digits, z the sum of the digits of y and w the sum of digits of z, then the maximum possible value of w is ​

Answer 1

Answer:

9

Step-by-step explanation:

a thousand digit number x

maximaum is if all digits are 9

so max value of y is 9+9+9+9+...(1000 times)=9000

then max value of z=9+0+0+0=9

then max value of w=9

Answer 2

Answer is 11 not 9

Z comes out to be < 36

Only number that is < 36 and its sum of digits is more than 10 is 29 , so Z is 29 and therefore W is 11 .