Explanation

6, 9, 13, 16, 20, 23, ......

+3 +4 +3 +4 +3 +4

6+3 = 9

9+4 = 13

13+3 = 16

16+4 = 20

23 + 4 = 27

So, 27, 30

Explanation

To find how many times digit 3 appears from 1 to 100, count how often it appears in:

1. Units place:

Numbers with 3 in units place:  

3, 13, 23, 33, 43, 53, 63, 73, 83, 93 → 10 times

2. Tens place:

Numbers with 3 in tens place:  

30–39 → 10 times

3. Total:  

10 (units) + 10 (tens) = 20 times

SH18-8-2023

Explanation

Given:  

Discount = 20%  

Selling Price (after discount) = Rs. 70  

We need to find the Marked Price.

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Step-by-step solution:

Let Marked Price = x

After 20% discount, the customer pays 80% of the marked price.

So,  

80% of x = 70

Convert to equation:  

(80/100) × x = 70  

⇒ (4/5) × x = 70

Multiply both sides by 5:  

4x = 350

Now divide both sides by 4:  

x = 350 ÷ 4 = 87.5

Marked Price = Rs. 87.50

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Explanation

Percentage = (90 / 120) × 100

= 75%

Explanation

Explanation

There are seven heavens in Islam.

1) Dar al-Salam

2) Dar al-Jalal

3) Jannatul Mava

4) Jannatul Khuld

5) Jannatul Adan

6) Jannatul Firdous

7) Jannatul Naeem 

**

ND5-2-2023

Explanation

As we all know

Circumference of the circle: 2πr

The radius of the circle: r

Ratio = 2πr : r = 2πr/r = 2π

Thus we conclude that 2π:1

Explanation

=60. percent *70 

=(60.:100)*70 

=(60.*70):100

=4200:100 = 42

Now we have: 60. percent of 70 = 42

SH18-8-2023

Explanation

One kilometer is equal to 1000 meters.

...

The term “kilo-” in “kilometer” is a prefix in the metric system that means “thousand.”

So, when we say “kilometer,” it means a 1000 meters. 

Explanation

Solution

• 13 ÷ 2 = 6, remainder 1

• 6 ÷ 2 = 3, remainder 0

• 3 ÷ 2 = 1, remainder 1

• 1 ÷ 2 = 0, remainder 1

Reading the remainders from bottom to top: 1101

So, 13 in binary = 1101.