Here are some reasoning questions which are commonly asked during any job interview:
Q1. There is a light bulb in the first floor, which is a completely closed room with only 1 door, and there are three switches in the ground floor. Which is the correct switch to switch on the light bulb? (You can only visit this room once.)
Q2. Two fathers take their sons to a stroll to a fruit stall. Each one of them bought an apple. But when they reached home, they only had 3 apples. They did not eat, throw, or forgot it at the stall or anywhere. How is this possible?
Q3. A surgeon has to treat 3 patients with deep wounds, but he has only two pairs of surgery gloves. There should be no blood contact between the patients. How will the surgeon treat his patients?
Answers:
A1. Turn on the first switch, then wait for ten minutes. Turn it off and turn on the second one, and go upstairs. If the bulb is glowing, then it's the second switch. If the bulb is warm when it is touched, then
it is the first switch. If it is neither, then it is the third switch.
A2. Two fathers in the sense a father and a grand father, and their sons in the sense a son and a grand son.
A3. The surgeon wears both pairs of gloves at the same time and performs the first surgery. He then takes
off the 1st pair, inverts it, keeps it on the table to dry, and performs the second surgery. He then wears the inverted gloves and performs the third surgery.
Q1. There is a light bulb in the first floor, which is a completely closed room with only 1 door, and there are three switches in the ground floor. Which is the correct switch to switch on the light bulb? (You can only visit this room once.)
Q2. Two fathers take their sons to a stroll to a fruit stall. Each one of them bought an apple. But when they reached home, they only had 3 apples. They did not eat, throw, or forgot it at the stall or anywhere. How is this possible?
Q3. A surgeon has to treat 3 patients with deep wounds, but he has only two pairs of surgery gloves. There should be no blood contact between the patients. How will the surgeon treat his patients?
Answers:
A1. Turn on the first switch, then wait for ten minutes. Turn it off and turn on the second one, and go upstairs. If the bulb is glowing, then it's the second switch. If the bulb is warm when it is touched, then
it is the first switch. If it is neither, then it is the third switch.
A2. Two fathers in the sense a father and a grand father, and their sons in the sense a son and a grand son.
A3. The surgeon wears both pairs of gloves at the same time and performs the first surgery. He then takes
off the 1st pair, inverts it, keeps it on the table to dry, and performs the second surgery. He then wears the inverted gloves and performs the third surgery.
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