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Sunday, October 31, 2010

Mth302 Assignment No. 1 Solution

Question 1:

If the basic salary of an employee is Rs. 37000 and allowances are Rs. 22,000.

What is the taxable income of employee?

Solution

Basic Salary Rs.37000

Allowances Rs. 22000

% of Allowances (22,000 / 37000) x100 = 59.50%

Allowed non-taxable Allowance (50% = 0.5 x 37000 = 18500)

Taxable Allowances (59.50% - 50%)

(22000 - 18500) Rs. 3500

Hence 3,500 Rs. of allowances are taxable.

Total Taxable Income (37000 + 3500) Rs.40500

Question 2:

If the salary and allowances of an employee is as follows:

Basic salary = Rs. 12,000

House Rent Allowance = 45%

Conveyance Allowance = 5%

Utilities Allowance = 7%

Group Insurance/Medical = 0%

Misc. Social Charges = 5.8%

There are 12 casual, 24 earned and no sick leaves per year where as normal working days per month are 26. Find the Gross remuneration of the employee.

Solution

Rs. Rs.

Basic Salary 12,000

Allowances:

House Rent 45% (Calculation # 1) Rs. 5,400

Conveyance 5% (Calculation 2) Rs. 600

Utilities 7% (Calculation # 3) Rs. 840

Total Allowances 6,840

Gross Salary 18,840

Misc. Social Charges 5.8% (Calculation # 4) 1,093

Leaves Cost (Calculation # 5) 26,086

Gross Remuneration 46,019

Additional Working

Calculation # 1

H. R. Allowance 45% of Basic Salary

= (45 / 100) x 12,000 = Rs. 5,400

Calculation # 2

Conveyance Allowance 5% of Basic Salary

= (5 / 100) x 12,000 = Rs. 600

Calculation # 3

Utilities Allowances 7% of Basic Salary

= (7 / 100) x 12,000 = Rs. 840

Calculation # 4

Misc. Social Charges 5.8% of Gross Salary

= (58 / 1000) x 18,840 = 1,092.72 or Rs. 1,093

Calculation # 5

Cost of Leaves

Causal = (12 / 26) x 18,840 = 8,695.38 or 8,695 Rs.

Earned = (24 / 26) x 18,840 = 17,390.77 or 17,391 Rs.

Total cost of leaves = 26,086 Rs.

Question 3:

A trade discount series of 20, 10, and 5 is offered on an item which has a list price of Rs. 9100. Find the amount of discount and the net price.

Solution

Rs.

List Price = 9,100

Here Discount1 = 20%

Discount 2 = 10%

Discount 3 = 5%

Net Price = L (1 – d1) (1 – d2) (1 – d3)

= 9,100 (1 – 0.2) (1 – 0.1) (1 – 0.05)

= 9,100 (0.8) (0.9) (0.95)

= 9,100 (0.984)

Net Price = Rs.6, 224.4

Discount = List Price - Net Price

= 9,100 - 6,224.4

Discount = 2,875.6

Question 4:

If your goal is to have an amount of 325000 in seven years and you can get interest rate of 9% per annum compounded annually. How much would you need to invest now?

Solution

Compound Amount S = Rs. 325,000

Rate of Interest r = 9 % = 0.09

Number of Periods n = 7 years

Principal Amount P = ?

S = P (1+r) ^n

325,000 = P (1 + 0.09) ^7

325,000 = P (1.09) ^7

325,000 = P (1.82804)

Dividing both side by 1.82804

325,000 / 1.82804 = P

177,786.04 = P

So the Principal amount need to invest now = Rs. 177,786.04

Question 5:

If you start saving Rs. 28,000 at the end of each six month, and you get interest rate 11% (per annum) compounded semi-annually, how much will you have accumulated at the end of 20 years?

Solution

Amount of Annuity per period C = Rs. 28,000

Rate of Interest i = 11 % p.a

= 5.5 % = 0.055 semi-annually

Number of Payment n = 20 yearly = 40 semi-annually

Accumulated Value of Annuity S = ?

S = C * ((1 + i) ^n – 1) / i

S = 28,000 * ((1 + .055) ^40 – 1) / 0.055

S = 28,000 * ((1.055) ^40 – 1) / 0.055

S = 28,000 * (8.51331 – 1) / 0.055

S = 28,000 (136.60564)

So the Future Value or Accumulated Value of an ordinary annuity is

S = Rs.3824957.92

Question 6:

The price of an item decreased from Rs. 856 to Rs.752. What is the percentage change in price of item?

Solution

Initial Price = Rs. 856

Revised Price = Rs.752

Change = Revised Price - Initial Price

= 752 - 856 = Rs. - 104

Percentage of Change = (Change / Initial Price) x 100

= (- 104 / 856) x 100

= - 12.1495 %

So the price decreased by 12.1495 %

Question # 7

Suppose you can afford to pay 9,000 per month on a loan. How much can you borrow if the loan is for a period of 15 years and the interest rate is 5% per annum compounded monthly?

Solution

Cash flow per period C = 9,000 Rs.

Rate of Interest i = 5 % p.a = 0.004166667 p.m

Number of Payment n = 15 year = 180 month

Discounted Value of Annuity S = ?

S = C * (1 - (1 + i)^-n) / i

S = 9,000 * (1 - (1 .004166667)^-180) / 0.004166667

S = 9,000 * (1 - (.473103127) / 0.004166667

S = 9,000 * (.526896872) / 0.004166667

S = 9,000 * (126.45523937)

S = Rs. 1,138,097.15

So the Present Value or discounted Value of a loan is

S = Rs. 1,138,097.15

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