Question

A rod of length 20 cm is made of metal . It expands by 0.075 cm when its temperature is raised from 0c0c to 100c100c . Another rod of a different metal b having the same length expands by 0.045 cm for the same change in temperature . A third rod of the same change in temperature . A third rod of the same length is composed of two parts , one of metal a and the other of metal
b. This rod expands by 0.060 cm for the same change in temperature . The portion made of metal a has the length

Answer 1

Answer:

47+747+856

Explanation:

5754-57475-646+8 do it