Understanding Budget Allocation and Increase

The problem provides us with budget allocations across five different heads (A, B, C, D, E) as percentages of the total budget. We are given the total budget amount and asked to find the increase in the amount allocated to head A if the total budget is increased by three times.

Here is the breakdown of the given information:

• Total budget allocation: ₹300.4 lakhs
• Allocation percentage for head A: 40%
• New total budget: Increased by three times the original total budget.

We need to calculate the original amount allocated to head A, then the new total budget, the new amount allocated to head A, and finally the increase in the amount for head A.

Step 1: Calculate the original amount allocated to head A

The amount allocated to head A is 40% of the total budget.

Original Amount for A = 40% of ₹300.4 lakhs

Using LaTeX for the calculation:

\( \text{Original Amount for A} = \frac{40}{100} \times 300.4 \text{ lakhs} \)

\( \text{Original Amount for A} = 0.40 \times 300.4 \text{ lakhs} \)

\( \text{Original Amount for A} = 120.16 \text{ lakhs} \)

So, the original amount allocated to head A is ₹120.16 lakhs.

Step 2: Calculate the new total budget

The total budget is increased by three times. This means the new total budget will be the original total budget plus three times the original total budget, or simply four times the original total budget. However, the phrasing "increased by three times" often implies the new amount is the original amount multiplied by three. Let's assume it means the new budget is 3 times the original budget.

New Total Budget = 3 \(\times\) Original Total Budget

New Total Budget = 3 \(\times\) ₹300.4 lakhs

New Total Budget = ₹901.2 lakhs

Let's consider the alternative interpretation: "increased *by* three times" means the increase is three times the original, making the new total four times the original. If the question meant "increased *to* three times", then the new total is 3 * Original. Given the options, the interpretation "increased to three times" (i.e., new total is 3x the original) seems more likely to yield one of the answers. We will proceed with the interpretation that the new total budget is 3 times the original total budget.

Step 3: Calculate the new amount allocated to head A

The percentage allocation for head A remains the same (40%), but it is now applied to the new total budget.

New Amount for A = 40% of New Total Budget

New Amount for A = 40% of ₹901.2 lakhs

Using LaTeX for the calculation:

\( \text{New Amount for A} = \frac{40}{100} \times 901.2 \text{ lakhs} \)

\( \text{New Amount for A} = 0.40 \times 901.2 \text{ lakhs} \)

\( \text{New Amount for A} = 360.48 \text{ lakhs} \)

The new amount allocated to head A is ₹360.48 lakhs.

Alternatively, since the percentage allocation for A (40%) remains constant and the total budget is multiplied by 3, the amount allocated to A will also be multiplied by 3.

New Amount for A = 3 \(\times\) Original Amount for A

New Amount for A = 3 \(\times\) ₹120.16 lakhs

New Amount for A = ₹360.48 lakhs

Both methods give the same new amount for A.

Step 4: Calculate the increase in the amount for head A

The increase in the amount for head A is the difference between the new amount and the original amount allocated to head A.

Increase in A = New Amount for A - Original Amount for A

Increase in A = ₹360.48 lakhs - ₹120.16 lakhs

Using LaTeX for the calculation:

\( \text{Increase in A} = 360.48 - 120.16 \text{ lakhs} \)

\( \text{Increase in A} = 240.32 \text{ lakhs} \)

The amount increased on head A is ₹240.32 lakhs.

Alternatively, since the new amount for A is 3 times the original amount for A, the increase is the new amount minus the original amount, which is 3 \(\times\) Original - 1 \(\times\) Original = 2 \(\times\) Original.

Increase in A = 2 \(\times\) Original Amount for A

Increase in A = 2 \(\times\) ₹120.16 lakhs

Increase in A = ₹240.32 lakhs

Both calculations confirm the increase.

Summary of Calculations

The amount that will be increased on A if the total budget is increased by three times is ₹240.32 lakhs.

Revision Table: Budget Allocation Concepts

Additional Information: Percentage Change and Scaling

When a total value increases by a certain factor and a component of that total is always a fixed percentage of the total, that component will also increase by the same factor.

In this problem:

• Original Total Budget = T
• Original Amount for A = 40% of T = 0.40 \(\times\) T
• New Total Budget = 3 \(\times\) T
• New Amount for A = 40% of (3 \(\times\) T) = 0.40 \(\times\) 3 \(\times\) T = 3 \(\times\) (0.40 \(\times\) T) = 3 \(\times\) Original Amount for A

The increase in the amount for A is:

Increase = New Amount for A - Original Amount for A

Increase = (3 \(\times\) Original Amount for A) - Original Amount for A

Increase = (3 - 1) \(\times\) Original Amount for A

Increase = 2 \(\times\) Original Amount for A

This shows that the *increase* itself is twice the original amount allocated to A. We calculated the original amount for A as ₹120.16 lakhs. Therefore, the increase is 2 \(\times\) ₹120.16 lakhs = ₹240.32 lakhs. This confirms our step-by-step calculation.