Advertisements
Advertisements
Question
A new computer costs Rs 1,00,000. The depreciation of computers is very high as new models with better technological advantages are coming into the market. The depreciation is as high as 50% every year. How much will the cost of computer be after two years?
Advertisements
Solution
The cost of the new computer = ₹ 100000
The depreciation rate = 50% per annum
Time period (T) = 2 years
Let the cost of computer after 2 years = ₹ A
∵ `A = P(1 - R/100)^T`
= `100000(1 - 50/100)^2`
⇒ `A = 100000 xx 1/2 xx 1/2`
= 25000 × 1
∴ A = ₹ 25000
Hence, the cost of computer after 2 years is ₹ 25000.
APPEARS IN
RELATED QUESTIONS
By selling a book for Rs 258, a bookseller gains 20%. For how much should he sell it to gain 30%?
Mariam bought two fans for Rs 3605. She sold one at a profit of 15% and the other at a loss of 9%. If Mariam obtained the same amount for each fan, find the cost price of each fan.
The difference between two selling prices of a shirt at profits of 4% and 5% is Rs 6. Find
(i) C.P. of the shirt
(ii) the two selling prices of the shirt
A shopkeeper marks his goods at 40% above the cost price but allows a discount of 5% for cash payment to his customers. What actual profit does he make, if he receives Rs 1064 after paying the discount?
Using the figures given below, frame problems based on profit percent or loss percent.
Cost price of 50 Kg grain ₹ 2000, selling price ₹ 43 per kg.
If selling an article for ₹ 820 causes 10% loss on the selling price, then find its cost price.
What is the marked price of a hat which is bought for ₹ 210 at 16% discount?
There is no profit or loss when
A fruit seller bought 2 dozen bananas at ₹ 20 a dozen and sold them at ₹ 3 per banana. Find his gain or loss
A store is having a 25% discount sale. Sheela has a Rs 50 gift voucher and wants to use it to buy a board game marked for Rs 320. She is not sure how to calculate the concession she will get. The sales clerk has suggested two ways to calculate the amount payable.
- Method 1: Subtract Rs 50 from the price and take 25% off the resulting price.
Which method do you think stores actually use? Why?
