Find Interview Questions for Jindal stainless steelway limited

We are given:

• HCF = 12

• LCM = 336

• One number = 84

• We are to find the other number.

🧠 Concept:

We use the fundamental relation between two numbers, their HCF and LCM:

$$\text{HCF}\times \text{LCM}=\text{Product of the two numbers}$$

🔢 Step-by-step Calculation:

Let the other number be x.

We are given:

$$12\times 336=84\times x$$ $$4032=84\times x$$

Now solve for x:

x=403284=48x = \frac{4032}{84} = 48x=844032​=48

✅ Final Answer:
The other number is 48.

🧪 Check (optional):

• HCF of 84 and 48 = 12

• LCM of 84 and 48 = (84 × 48) / 12 = 4032 / 12 = 336 ✅
  Hence, correct!

To find the HCF (Highest Common Factor) of 0.54, 1.8, and 7.2, follow these steps:

🟠 Step 1: Convert all decimals to whole numbers
To eliminate decimals, multiply each number by 100 (to make them whole):

• 0.54 × 100 = 54

• 1.8 × 100 = 180

• 7.2 × 100 = 720

So now we need to find the HCF of 54, 180, and 720.

🟠 Step 2: Prime factorization

• 54 = 2 × 3³

• 180 = 2² × 3² × 5

• 720 = 2⁴ × 3² × 5

Common prime factors:

• 2 (minimum power is 1)

• 3 (minimum power is 2)

So, HCF = 2 × 3² = 2 × 9 = 18

But remember, we multiplied each number by 100, so we must divide the result by 100 to bring it back to the original scale.

🟢 Step 3: Convert HCF back to decimal
18 ÷ 100 = 0.18

✅ Final Answer:
The H.C.F. of 0.54, 1.8, and 7.2 is 0.18