Explanation

Cost of 25 toys = 500

Cost of 01 toys = 500/ 25 = 20/ 1

1 toys = 20 

Cost f 75 toys = 75 x 20 = 1500

Explanation

To find the purchase price, use the formula:

Selling Price = Purchase Price × (1 - Loss%)

Given:  

Selling Price = Rs. 25,000  

Loss = 20% → (1 - 0.20) = 0.80

Now,

25,000 = Purchase Price × 0.80  

Purchase Price = 25,000 ÷ 0.80 = Rs. 31,250

Explanation

Total books = 65 + 50 = 115  

Total cost = 1150 + 920 = Rs. 2070  

Average price per book = 2070 ÷ 115 = Rs. 18  

Explanation

- Cost price (CP) = Rs.120  

- Profit margin = 42% of CP  

Profit = 42% of 120 = (42/100) × 120 = Rs.50.4  

Selling price (SP) = CP + Profit = 120 + 50.4 = Rs.170.4

Explanation

Original price = Rs. 400  

Discount = 25% of Rs. 400 = (25/100) × 400 = Rs. 100  

Sale price = Original price - Discount = 400 - 100 = Rs. 300  

Explanation

Cost per ounce = 30 cents = 0.30  

Total cost =3.60  

Number of ounces = Total cost / Cost per ounce  

= 3.60 / 0.30  

= 12 ounces  

Explanation

To find the original price before the 20% increase, follow these steps:

1. Let the original price be  P. The price is increased by 20%, so the new price is 120% of the original price.

New Price=1.20×Original Price

2. Set up the equation using the given new price of $60:

1.20×P=60

3. Solve for 

 𝑃= 60/ 1.20 = 50

So, the original price was $50. 

Explanation

Cost Price = Rs. 60,000

Profit % = 15%

Profit = 15% of 60,000 = 0.15 × 60,000 = Rs. 9,000

Selling Price = Cost Price + Profit

= 60,000 + 9,000

= Rs. 69,000

Explanation

Discount = 25% of 60,000

= 0.25 × 60,000

= 15,000

Explanation

CP = 80,000

Profit % = 15%

Profit = 15% of 80,000 = 0.15 × 80,000 = 12,000

SP = CP + Profit = 80,000 + 12,000 = 92,000