Cost and Management Accounting — BEP, Cost Sheets & Contract Costing: 16 MCQs with answers
All 16 multiple-choice questions from this kit, free and with no sign-up.
Warm-up · 6 questions
Q1. What does the weighted average contribution margin per unit (WACMPU) represent in a multi-product firm?
BeginnerShow answer & explanation
The composite contribution margin of all products by mix share
WACMPU combines each product's contribution per unit weighted by its share in the sales mix, treating the firm as one composite product.
Q2. In the source data, P1 sells 6,000 units and P2 sells 4,000 units. What is P1's share in the sales mix?
BeginnerShow answer & explanation
0.6
P1's mix share = 6,000 ÷ 10,000 = 0.6.
Q3. Using the source data, what is the overall break-even point in units?
BeginnerShow answer & explanation
6,000 units
Overall BEP = Fixed Cost ÷ WACMPU = 30,000 ÷ 5 = 6,000 units.
Q4. Which of the following is a key assumption of break-even analysis?
BeginnerShow answer & explanation
Selling price, variable cost, and sales mix remain constant
Break-even analysis assumes selling price, variable cost, and sales mix remain constant.
Q5. In the source data, P1's selling price per unit is Rs. 10 and P2's is Rs. 15. What is P1's contribution margin per unit?
BeginnerShow answer & explanation
Rs. 5
P1's VC per unit = 30,000 ÷ 6,000 = Rs. 5. CM = Rs. 10 − Rs. 5 = Rs. 5.
Q6. For the given data, the weighted average contribution margin per unit is Rs. 5, so the overall break-even point is 6,000 units.
BeginnerShow answer & explanation
True
For the given data, the weighted average contribution margin per unit is Rs. 5, so the overall break-even point is 6,000 units.
Building up · 5 questions
Q7. A company sells two products with equal contribution margins per unit. If the sales mix is reversed, what happens to the overall break-even point?
IntermediateShow answer & explanation
It stays the same because the CMs are equal
A mix change moves the overall BEP only when products have different CMs. With equal CMs, the WACMPU is unchanged.
Q8. In the source data, what are the product-wise break-even units for P1 and P2?
IntermediateShow answer & explanation
P1 = 3,600; P2 = 2,400
Product-wise BEP = Overall BEP × mix share: P1 = 6,000 × 0.6 = 3,600; P2 = 6,000 × 0.4 = 2,400.
Q9. If the desired profit is Rs. 30,000, what is the overall required sales volume in units for the source data?
IntermediateShow answer & explanation
12,000 units
Required units = (Fixed Cost + Desired Profit) ÷ WACMPU = (30,000 + 30,000) ÷ 5 = 12,000 units.
Q10. P1's variable cost rises by 10%. Its old VC per unit was Rs. 5 and its selling price is Rs. 10. What is the new contribution margin per unit for P1?
IntermediateShow answer & explanation
Rs. 4.50
New VC = Rs. 5 × 1.10 = Rs. 5.50. New CM = Rs. 10 − Rs. 5.50 = Rs. 4.50.
Q11. What is the margin of safety if actual sales are 12,000 units and break-even sales are 6,000 units?
IntermediateShow answer & explanation
6,000 units
Margin of safety = Actual sales − Break-even sales = 12,000 − 6,000 = 6,000 units.
Topper level · 5 questions
Q12. After P1's variable cost rises by 10%, what is the new WACMPU?
AdvancedShow answer & explanation
Rs. 4.70
New WACMPU = 4.50(0.6) + 5(0.4) = 2.70 + 2.00 = Rs. 4.70.
Q13. After P1's variable cost rises by 10%, what is the new overall break-even point in units (approximately)?
AdvancedShow answer & explanation
6,383 units
New BEP = 30,000 ÷ 4.70 ≈ 6,383 units.
Q14. A student computes BEP for each product separately using the total fixed cost. Why is this wrong?
AdvancedShow answer & explanation
Fixed cost is a company-level figure and must be divided by WACMPU first
Fixed cost is company-level; dividing it by WACMPU and then splitting by mix is the correct method. Splitting fixed cost first gives a wrong answer.
Q15. A company sells two products with different contribution margins. If the mix shifts toward the higher-CM product, what happens to the overall BEP?
AdvancedShow answer & explanation
It falls because WACMPU rises
Shifting toward the higher-CM product raises WACMPU, which lowers the overall BEP (Fixed Cost ÷ WACMPU).
Q16. Why does cost control on high-volume products have the largest impact on the overall BEP?
AdvancedShow answer & explanation
Because their CM carries the largest weight in WACMPU
High-volume products dominate the sales mix, so their CM carries the largest weight in WACMPU — a cost change there moves the overall BEP the most.
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