1.

3.The length of an elastic string is X m when the tension is 8 N, and Y m when the tension is 10 N. The lengthin metres when the tension is 18 N is(1) 4X- 5Y(3) 9x - 4Y(2) 5Y 4X(4) 4Y-9X

Answer»

option 2

equate last equation..

the equation 5y-4x is the needed equation and option 2 states the same. So that is the answer.

thnx



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