What will be the total weight of 10 poles, each of the same weight ?…
2025
What will be the total weight of 10 poles, each of the same weight ?
Statements :
I. One-fourth of the weight of each pole is 5 kg.
II. The total weight of three poles is 20 kilograms more than the total weight of two poles.
- A.
I alone is sufficient while II alone is not sufficient.
- B.
II alone is sufficient while I alone is not sufficient.
- C.
Either I or II is sufficient.
- D.
Neither I nor II is sufficient.
Attempted by 35 students.
Show answer & explanation
Correct answer: C
Answer: Total weight of 10 poles = 200 kg
From the first statement: one-quarter of each pole's weight is 5 kg, so weight per pole = 4 × 5 = 20 kg.
From the second statement: the total weight of three poles is 20 kg more than that of two poles, so 3w − 2w = 20, which gives w = 20 kg per pole.
Since each statement individually gives the weight per pole as 20 kg, the total weight of 10 poles = 10 × 20 = 200 kg. Therefore either statement alone is sufficient.