To find a percentage of a number, multiply the number by the percentage expressed as a decimal: \(15\% \text{ of } 240 = 0.15 \times 240\).

Convert 15% to its decimal form:

Alternatively, using fractions:

Answer: 36 (Option A)

Average speed = Distance/Time = 360/6 = 60 km/h

√196 = 14 (since 14 × 14 = 196)

To simplify this expression, we apply the order of operations (BODMAS/PEMDAS): Brackets, Orders, Division & Multiplication (left to right), then Addition & Subtraction (left to right).

Step 1: Perform Division

Division comes before addition and subtraction, so evaluate \(12 \div 4\) first.

The expression becomes:

Step 2: Perform Multiplication

Next, evaluate \(2 \times 3\).

The expression becomes:

Step 3: Perform Addition and Subtraction (Left to Right)

Now evaluate from left to right.

Step 4: Final Subtraction

Answer: \(5\) (Option A)

5x = 35 - 10 = 25, so x = 5

To find the cost price when selling price and profit percentage are known, use the relationship: \(\text{Selling Price} = \text{Cost Price} \times (1 + \text{Profit\%}/100)\)

Step 1: Set up the profit formula

When a shopkeeper makes a 25% profit, the selling price is 125% of the cost price.

Step 2: Express in terms of cost price

Step 3: Solve for cost price

Step 4: Calculate the final answer

Verification: If CP = Rs. 480, then profit = \(600 - 480 = 120\), and profit% = \(\frac{120}{480} \times 100 = 25\%\) ✓

Answer: The cost price was Rs. 480 (Option B)

3x + 5x = 80; 8x = 80; x = 10. Numbers are 30 and 50

SI = (P × R × T)/100 = (5000 × 8 × 3)/100 = 1200

Time = 6.5 hours; Speed = 195/6.5 = 30 km/h

35% of 2000 = 700; 20% of 700 = 140