Subject :NSO Class : Class 10
Find the missing term if same rute is followed in all the tree figures. 
A 69
B 49
C 38
D 37
there is a another method :-45 29-39 43 27-33=7243 29-42 44 30-31=73we will add the largest and the smallest no. and then subtract the intermidiate one .so in the last sequence :-40 20-10 59 39 -79=4949 can also be the answewr