Subject :NSO Class : Class 4
Which of these machines work on the same principle as does the see-saw?
A P and Q
B Q and R
C P and R
D R and S
Ans 1:
Class : Class 7
ANS b
Ans 2:
Class : Class 5
I THINK IT IS D
Ans 3:
Class : Class 8
Ans 4:
Class : Class 7
Ans 5:
Class : Class 7
c
Ans 6:
Class : Class 4
Ans 7:
Class : Class 5
i think its a