Question

If A's income is Rs. 80,000 per annum and the difference between the incomes of B and D be the same as A's income, B's income is?

• A. Rs 40,000
• B. Rs 60,000
• C. Rs 80,000
• D. Rs 1,20,000
• E. Rs 20,000

Hint:

Always substitute numerical values in given relations.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
We have the values: $A = 80,000$ and $B - D = A = 80,000$. We also have the equation $B + D = 2A$ from earlier.
Step 2: Detailed Explanation:
1. $B + D = 2 \times 80,000 = 160,000$ 2. $B - D = 80,000$
Step 3: Calculation:
Add the two equations: $(B + D) + (B - D) = 160,000 + 80,000$ $2B = 240,000$ $B = 120,000$
Step 4: Final Answer:
B's income is Rs 1,20,000. Thus, the correct option is (d).