Assam ASSEB Higher Secondary Finance common mistakes
Assam ASSEB Higher Secondary Finance · Understand the traps and how to avoid them.
Writing the NPV formula as NPV = Σ CFt/(1+r)^t but then discounting the initial outlay at year 0 as if it were also discounted one period, producing an NPV that is too low and rejecting profitable projects.
Students memorize the formula symbolically and forget that the initial investment occurs at t = 0, where the discount factor is 1; they mechanically apply the same exponent pattern to every cash flow in the table.
What to do instead
Always write a timeline first: mark t = 0 with the outlay (negative), t = 1 to n with inflows, and state explicitly 'the outlay is already at present value, exponent 0'. Then compute each term and, before finalizing, verify that the sign of the NPV equals the sign of (PV of inflows − outlay).
Confusing IRR with NPV and accepting a project because its IRR exceeds the cost of capital even when the NPV is negative, or ranking mutually exclusive projects by IRR rather than by NPV.
IRR is expressed as a percentage and feels intuitively comparable to an interest rate, so candidates treat 'higher percentage = better' as a universal rule and overlook reinvestment-rate assumptions and scale differences.
What to do instead
State the decision rule explicitly in every answer: accept if NPV > 0; for mutually exclusive projects, choose the highest NPV. Use IRR only as a secondary check and mention the reinvestment-rate assumption. When IRR and NPV conflict, write one sentence explaining that NPV is preferred because it measures absolute value added.
Mixing book values and market values when computing WACC, or using the pre-tax cost of debt in the WACC formula without applying the (1 − t) tax shield.
Textbooks present several versions of the formula, and candidates copy weights from the balance sheet while costs come from market data; the tax adjustment is easy to omit because the interest rate itself is quoted pre-tax.
What to do instead
Adopt one convention: weights based on market values (or explicitly state book-value weights if that is what the question gives), and always write Kd(after tax) = Kd × (1 − t). Show the weight calculation and the after-tax debt cost as separate labelled lines so the marker can see the tax shield was applied.
Computing a ratio correctly but then interpreting it in isolation, e.g., declaring a firm 'healthy' because its current ratio is 2:1 without checking the industry norm, the composition of current assets, or the trend over time.
Candidates treat ratio analysis as an arithmetic exercise and stop once the number is produced, because practice questions often ask only for the value, so the interpretive habit is never built.
What to do instead
For every ratio answer, add three sentences: (1) the computed value, (2) comparison to a benchmark - industry average, prior year, or a stated rule of thumb, and (3) one limitation, such as inventory-heavy current assets or window-dressing at year-end. Practice writing the interpretation before the calculation so it becomes automatic.
Miscalculating the future or present value of an annuity by using the single-sum formula, or by forgetting that an annuity due has one extra period of compounding compared with an ordinary annuity.
The annuity factor (1 − (1+r)^−n)/r looks similar to the single-sum discount factor, and candidates memorize one formula and apply it everywhere; the 'due' versus 'ordinary' distinction is a single word in the question that is easily missed.
What to do instead
Before computing, classify the cash-flow pattern out loud: single sum, ordinary annuity, annuity due, or perpetuity. Write the matching formula and, for annuities due, multiply the ordinary annuity factor by (1 + r). Cross-check with a one-period manual calculation to confirm the timing convention.
Treating the cash conversion cycle as simply 'inventory days + receivable days' and omitting payable days, or using sales instead of cost of goods sold as the denominator for inventory and payable days.
The three components are taught together but the subtraction of the payables period is the step most often dropped, and the choice of denominator depends on which turnover ratio is being computed, which candidates conflate.
What to do instead
Write the cycle as a formula chain: CCC = DIO + DSO − DPO, with DIO = (Inventory/COGS) × 365, DSO = (Receivables/Sales) × 365, DPO = (Payables/COGS) × 365. State the denominator next to each term so the COGS-versus-sales distinction is visible and cannot be silently swapped.
Describing the RBI's monetary policy tools by listing them without linking a repo-rate change to its effect on credit, investment, and the cost of capital, so answers read as a glossary rather than an analysis.
Institutions and markets are studied as definitions and institutions, and candidates revise names and full forms rather than transmission mechanisms, so they reproduce terminology when the question asks for consequences.
What to do instead
For each policy tool, prepare a two-step chain: 'RBI raises repo → banks' cost of funds rises → lending rates rise → borrowing for capex becomes costlier → investment and aggregate demand fall'. Practise writing the chain in three arrows; it converts a definition into an applied answer and earns analysis marks.
Confusing the roles of SEBI, RBI, IRDAI, and PFRDA, or describing a commercial bank function as a development financial institution function, when identifying which regulator governs a given instrument or institution.
The regulatory architecture is learned as a list of acronyms without a mapping to instruments, and the overlapping history (for example, RBI's earlier role in government securities) creates genuine ambiguity that candidates resolve by guessing.
What to do instead
Build a one-page mapping table: regulator → institutions regulated → instruments regulated → one typical exam trigger word (e.g., 'policyholder' → IRDAI, 'pension' → PFRDA, 'securities issue' → SEBI, 'bank licence' → RBI). Review the table before the exam and answer regulator questions only from it.
Answering an insurance question by defining insurance as 'protection from risk' and stopping there, without distinguishing risk transfer from risk retention or explaining the principle of indemnity and insurable interest.
Insurance is often revised last and treated as general awareness, so candidates give a moral-science answer instead of a technical one and miss the terminology the marker is looking for.
What to do instead
Prepare a short list of core principles - insurable interest, utmost good faith, indemnity, subrogation, contribution, proximate cause - each with a one-line definition and a concrete example. In any answer, name at least two principles and apply them to the scenario rather than describing insurance in general terms.
Building a personal financial plan by recommending investment products immediately, without first establishing the client's risk profile, time horizon, liquidity needs, and emergency fund.
Candidates equate financial planning with product recommendation, because that is how it appears in advertising, and they skip the diagnostic step that the syllabus explicitly requires.
What to do instead
Follow a fixed sequence in every answer: goal and horizon → risk tolerance → current cash flow and emergency fund (3–6 months of expenses) → insurance cover → then asset allocation, and only then specific instruments. Label each step in the answer so the examiner can see the process, not just the product list.