Explanation

What is the missing number?

a triangle is a three-sided polygon that consists of three edges and three vertices.

The rectangle is a quadrilateral shape (4-sided shape) 

In geometry, a hexagon is a six-sided polygon

Explanation

ND-6-09-2023

Explanation

It's a simple concept

63= 6–3=3

44= 4–4=0

91= 9–1=8

The series is 63,3,44,0,91,8

Explanation

Horse is different from cow, goat, and sheep

The horse is used to ride and the other animals are not used.

Sh6-9-2023

Explanation

Bangladesh's Capital is Dhaka.

Bangladesh Currency is Taka.

Bangladesh's official language is Bangla.

Bangladesh located is in the Continent of Asia.

Bangladesh's Primary Religion is Islam.

Bangladesh's Head of Govt. is Prime Minister – Sheikh Hasina.

Bangladesh Parliament is called the Jatia Parliament.

SH6-9-2023

Explanation

Boiling point of Sulfur is 444.7°C.

Melting point of Sulfur is 112.8°C.

Explanation

2x + 5 = 13

Step 1: Subtract 5 from both sides  

2x = 13 - 5  

2x = 8

Step 2: Divide both sides by 2  

x = 8 / 2  

x = 4

Explanation

1 dozen eggs = 12 eggs, costing Rs. 250.

Cost per egg =  250/12 Rs.

For 30 eggs, the cost =  30 × 250/12 = 250

​Let's calculate it:

Cost for 30 eggs = 30 × 250/ 12 = 30 × 20.83 = 625

Cost for 30 eggs =30×20.83=625

So, the cost price of 30 eggs is Rs. 625.

Explanation

Sum of first three prime numbers:  

2 + 3 + 5 = 10

Explanation

One trillion equals a thousand billion or million millions

1 trillion consists of 1 followed by 12 zeros,

that is, 1, 000, 000,000, 000

and can be written as (10^{12} ) 

 It takes about 32,000 years to finish 1 trillion seconds.

ND28-4-2023