Explanation

Total parts = 4 + 3 + 5 = 12
One part = 4800 ÷ 12 = 400

C’s share = 5 × 400 = 2000

Explanation

Original price = Rs. 90  

Discount = 50% of 90 = Rs. 45  

Final price = 90 - 45 = Rs. 45

Explanation

Loss = 5000 - 4500 = 500  

Loss % = (500 / 5000) × 100 = 10%

Explanation

Cost price of bicycle =Rs.8000

Profit of 25%

Hence,

⇒ 25/100 ×8000=2000

Selling price = Cost price + Profit

⇒8000+2000=Rs.10000

**

ND17-1-2023

Explanation

Step 1: Total Cost Price (CP)

$$CP=60+80=140$$

Step 2: Selling Price (SP)

$$SP=80$$

Step 3: Profit or Loss

$$text{Profit/Loss} = SP - CP = 80 - 140 = -60$$

This is a loss of Rs. 60, not a profit.

Step 4: Percentage Loss

Loss %=Loss/CP​×100= 60​/140×100

Calculate:

60​/140=0.42857
$$0.42857\times 100=42.857\%\approx 42.86\%$$