Vidaara.orgClass 8 · Mathematics
CodeVID-M8-22-CT
Commercial Mathematics — Full Chapter Test
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- This is a full-length test covering the whole chapter — every topic is included.
- All questions are compulsory.
- Section A carries 1 mark each, Section B 2 marks, Section C 3 marks and Section D 5 marks.
- Show all working for Sections B, C and D. Only final answers are given at the end — for full solutions, raise your doubts with your teacher.
Section A — Multiple Choice Questions
5 × 1 = 5 marks
1.
A bill lists items bought and the:
- A.discount
- B.total amount
- C.tax rate
- D.profit
2.
Savings $=$
- A.Income $+$ Expenses
- B.Income $-$ Expenses
- C.Expenses $-$ Income
- D.Income $\times$ Expenses
3.
An exchange rate tells one currency's worth in:
- A.grams
- B.another currency
- C.percent
- D.years
4.
An invoice requests:
- A.a refund
- B.payment
- C.a discount
- D.delivery
5.
A budget is a plan for income and:
- A.tax
- B.spending
- C.profit
- D.discount
Section B — Short Answer (2 marks)
4 × 2 = 8 marks
6.
Find the cost of $3$ pens at Rs $10$ each.
7.
Income Rs $10000$, expense Rs $7000$. Find the savings.
8.
If $1$ dollar $=$ Rs $80$, find the value of $2$ dollars in rupees.
9.
A deposit of Rs $500$ into Rs $2000$ gives a balance of:
Section C — Short Answer (3 marks)
4 × 3 = 12 marks
10.
A bill has $2$ books at Rs $120$ and $3$ pens at Rs $15$. Find the total.
11.
A person earns Rs $25000$ and spends Rs $19000$. Find the savings and savings$\%$.
12.
If $1$ dollar $=$ Rs $82$, convert $5$ dollars to rupees.
13.
Opening balance Rs $5000$; deposit Rs $1500$; withdraw Rs $2000$. Find the balance.
Section D — Long Answer (5 marks)
2 × 5 = 10 marks
14.
Prepare the total of a bill: $4$ notebooks at Rs $45$ each, $2$ pens at Rs $20$ each and $1$ box at Rs $60$; then add $10\%$ GST on the subtotal.
15.
A family's monthly income is Rs $45000$. They spend Rs $18000$ on rent, Rs $12000$ on food and Rs $6000$ on other needs. Find the total expenses, the savings and the savings as a percentage of income.
Answer Key
Section A — Multiple Choice Questions
- (B) total amount
- (B) Income $-$ Expenses
- (B) another currency
- (B) payment
- (B) spending
Section B — Short Answer (2 marks)
- Rs $30$.
- Rs $3000$.
- Rs $160$.
- Rs $2500$.
Section C — Short Answer (3 marks)
- Rs $285$.
- Savings Rs $6000$; $24\%$.
- Rs $410$.
- Rs $4500$.
Section D — Long Answer (5 marks)
- Subtotal Rs $280$; total Rs $308$.
- Expenses Rs $36000$; savings Rs $9000$; $20\%$.
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