Logical Reasoning - Essential Part

Exercise :: Essential Part - Type 1

Each question has an underlined word followed by four answer choices. You will choose the word that is a necessary part of the underlined word.
11. 

shoe

A. sole
B. leather
C. laces
D. walking

Answer: Option A

Explanation:

All shoes have a sole of some sort.Not all shoes are made of leather (choice b); nor do they all have laces (choice c).Walking (choice d) is not essential to a shoe.

12. 

swimming

A. pool
B. bathing suit
C. water
D. life jacket

Answer: Option C

Explanation:

Water is essential for swimming-without water, there is no swimming. The other choices are things that may or may not be present.

13. 

lightning

A. electricity
B. thunder
C. brightness
D. rain

Answer: Option A

Explanation:

Lightning is produced from a discharge of electricity, so electricity is essential. Thunder and rain are not essential to the production of lightning (choices b and d). Brightness may be a byproduct of lightning, but it is not essential (choice c).

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