Explanation

If you divide a decimal by 10, the decimal point will move one place to the left.

0.7 / 10 = 0.07

Explanation

Explanation

We can write % as 1/100 so.

142.5/100 = 1.425

Explanation

To solve:

8 ÷ 0.2

Convert 0.2 to a fraction:  

0.2 = 1/5

So:  

8 ÷ 1/5 = 8 × 5 = 40

Explanation

The largest perfect square between 4 and 50 is:

- 49, because  

49 = 7², and  

the next perfect square (64 = 8²) is greater than 50.

Explanation

Let the original average weight of the 3 boxes = x kg  

So, total weight = 3x

When a 89 kg box is replaced and average increases by 5 kg,  

New average = x + 5  

New total = 3(x + 5) = 3x + 15

So the new box weight =  

(Old total - 89) + New box = New total  

⇒ 3x - 89 + New box = 3x + 15  

⇒ New box = 3x + 15 - (3x - 89) = 104 kg

Explanation

Cost Price (CP) = Rs. 27.50  

Selling Price (SP) = Rs. 28.60

Gain = SP - CP = 28.60 - 27.50 = Rs. 1.10

Gain % = (Gain / CP) × 100  

= (1.10 / 27.50) × 100  

= 4%

Explanation

Explanation

Given:  

7500 + (1250 ÷ 50)

Step 1: Divide  

1250 ÷ 50 = 25

Step 2: Add  

7500 + 25 = 7525

Explanation

Six tenths is the same as 6/10, which simplifies to 3/5 or 0.6.