Look at the following image and tell how tall is the table?

Question

Answer 1

150 cm

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t+x-y=170 cm -------- (1)
t+y-x=130 cm -------- (2)
(1)+(2)=t+x-y+t+y-x=2t=170+130=300 cm => 2t=300 cm, t=150 cm