GATE | GATE-CS-2015 (Set 2) | Question 65

Based on the given statements, select the most appropriate option to solve the given question. What will be the total weight of 10 poles each of same weight?

Statements: 
  (I) One fourth of the weight of a pole is 5 kg
  (II) The total weight of these poles is 160 kg more
       than the total weight of two poles.

(A)

Statement II alone is not sufficient

(B)

Statement II alone is not sufficient

(C)

Either I or II alone is sufficient

(D)

Both statements I and II together are not sufficient.

Answer: (C)

Explanation:

(I) is sufficient. We can determine total weight of 10
   poles as 10 * 4 * 5 = 200 Kg

(II) is also sufficient, we can determine the weight.
  Let x be the weight of 1 pole.
  10*x - 2*x = 160 Kg
  x = 20 Kg
  10x = 200 Kg 

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