Q. Find the correct value in the given diagram for A , B , C and D
image
A B C D
1 300 600 900 1200
2 300 1200 600 900
3 120 300 600 900
4 300 600 1200 900

 1339  195 Excretory Products and their Elimination Report Error

Solution:

Correct answer is (a) 1