Answer:
the answer is 37..............
compare the triangles ΔABC and ΔBCD
∡ABC = ∡BCD (given)
AB = CD (given)
BC = BC (common) } = > (SAS) ΔABC ≡ ΔBCD = > AC = BD
x = 2y
Taking the cost of a notebook to be ₹ x and that of a pen to be ₹ y
hope that helps...
um ok
Step-by-step explanation: