Puzzles
PART-B
Level 1: Easy
Handshakes, Heads & Legs, Snail Climbs & Age Riddles (Questions 1 – 5)
Question 01
In a party of 10 people, everyone shakes hands with everyone else exactly once. How many total handshakes take place?
Correct Answer: (B) 45
Explanation:
$$\text{Total Handshakes} = \frac{n(n - 1)}{2}$$
Here, \(n = 10\):
$$\text{Total Handshakes} = \frac{10 \times (10 - 1)}{2} = \frac{10 \times 9}{2} = 45$$
Question 02
A shepherd has some hens and goats. If the total number of heads is 50 and the total number of legs is 140, how many goats does the shepherd have?
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