Advertisements
Advertisements
Question
Choose the most appropriate option:
The value of a machine depreciates every year at the rate of 10% on its value at the beginning of that year. If the present value of the machine is Rs. 729, its worth three years ago was:
Options
Rs. 1000
Rs. 750.87
Rs. 800
Rs. 947.70
Solution
Rs. 1000
Explanation:
Let the value of Machine 3 years ago = x
Depreciation rate = 10% pa
Present value = 729
`⇒"x"(1-10/100)^3=729`
x = ₹ 1000
APPEARS IN
RELATED QUESTIONS
The petrol prices shot up by 7% as a result of the hike in the price of crudes. The price of petrol before the hike was ₹28 per litre. Vawal travels 2400 kilometers every month and his car gives a mileage of 18 kilometers to a litre. Find the increase in the expenditure that Vawal has to incur due to the increase in the price of petrol (to the nearest rupee)?
Two solutions of 90% and 97% purity are mixed resulting in 21 litres of a mixture of 94% purity. How much is the quantity of the first solution in the resulting mixture?
The population of a town is 155625. Forever, 1000 males, there are 1075 females. If 40% of the males and 24% of the females are literate, find the percentage of literacy in the town.
A customized jewellery was sold at ₹1000 with a 90% discount on the ‘making charges’. If the payment made for making charges was ₹100, what was the approximate rate of discount on the product?
In an examination, every candidate took either Physics or Mathematics or both. 84% of the candidates took Physics and candidates who took Mathematics were half of those who took Physics. The total number of candidates being 1000, how many took both Physics and Mathematics?
Out of the total income, X spends 20% on house rent and 70% of the remaining amount on household expenditure. If X saves ₹1800, the total income is
The population of a city is 250 thousand. It is increasing at a rate of 2% every year. The growth in the population after 2 years is:
Divya purchased 6 mangoes, 10 oranges and 5 apples for a certain amount. With 40% less amount of Anu could purchase 3 mangoes, 5 oranges, and 4 apples. What percentage of the total amount did Divya spend on apples?
Mohan credits 15% of his salary into his bank and spends 30% of the remaining amount on household articles. If cash on hand is ₹2,380/-, what is his salary?
A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had
