Question 1-

1- 648
2- 585
3- 738
4- 504
Explanation
Ans- 3- 738
Question 2-


Explanation
Ans- Y,Xand Z are in arithmetic progression
Question 3-

Explanation
Ans- 19
Question 1-

1- 648
2- 585
3- 738
4- 504
Ans- 3- 738
Question 2-


Ans- Y,Xand Z are in arithmetic progression
Question 3-

Ans- 19