Question

any one solve the question ​

Answer 1

Answer:

let 4 blocks be p,q,r,s

i eq. is p+q=8

ii eq. is p+r=13

iii is r-s=6

iv is q+s=8

adding iii and iv

r+q=14.....(v)

subtracting i and ii

q-r = -5....(vi)

adding v and vi

q=9

putting the value of q in i eq.

p= -1

putting the value of p in eq.ii

r=14

putting the value of r in eq. iii

s= -1