Explanation

The formula to find the number of handshakes between n people is:

Handshakes = 𝑛(𝑛−1)/2

Here, n = 10

10 × 9/2 = 45

So, 45 handshakes occurred before the meeting.

Explanation

To find the missing term in the sequence, let's examine the pattern:

1/3, 1/8, ?, 2/3

First, notice the denominators: 3, 8, ?, 3.

The denominators don't seem to follow a straightforward arithmetic or geometric progression. Let's look at the numerators:

1, 1, ?, 2

The numerators seem to increase by 1 each time.

If we consider that the numerators increase by 1 and the denominators are not following a clear pattern, we could assume a pattern where the numerators increase by 1 every two terms.

Following this pattern, the missing term should have a numerator of 1, and since it's the second term after 1/8, the denominator should be 5 (since 3 + 2 = 5).

So, the missing term is 1/5.

Therefore, the completed series is:

1/3, 1/8, 1/5, 2/3

Explanation

To find the letter that precedes the letter which is 13th from D, we can count 13 letters forward from D in the alphabet:

D -> E -> F -> G -> H -> I -> J -> K -> L -> M -> N -> O -> P

The 13th letter from D is P. 

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Explanation

If all pens have ink and ink dries up,

اگر تمام قلموں میں سیاہی ہو اور سیاہی خشک ہو جائے،

All pens eventually dry up

تمام قلم آخر کار سوکھ جاتے ہیں۔

Explanation

There are a total of 7 letters in the series B C D E F G H 

The first 3 letters are: B C D

Middle letter in the series is: E

The last 3 letters are: F G H 

ND5-07-2023

Explanation

In the given series "AZBBZCCCZDDD," each letter is repeated a certain number of times equal to its position in the alphabet.

• "A" appears once.
• "B" appears twice.
• "C" appears three times.
• "D" appears four times.

Explanation

All cars need fuel. The red car needs fuel. What can you conclude about the red car?

All cars need fuel.

The red car needs fuel.

Explanation

Explanation

The pair that is different from the others is:

"Teacher and Student"

The other pairs are related to each other in a "part-whole" or "subset" relationship:

- Air contains Oxygen

- Geometry is a branch of Mathematics

- A flower has petals

In contrast, "Teacher and Student" represents a relationship between two individuals with different roles, rather than a part-whole relationship.

Explanation

Bakers are related to:

1. Bread: Bakers often bake different types of bread such as sourdough, whole wheat, or baguettes.

2. Cakes: Bakers create a variety of cakes for special occasions like birthdays and weddings.

3. Pastries: Bakers make pastries like croissants, danishes, and pies.

4. Cookies: Bakers bake cookies in various flavors and shapes.

5. Desserts: Bakers prepare a wide range of desserts like puddings, tarts, and custards.

6. Bakery: Bakers work in a bakery where they produce baked goods for sale.