Advertisements
Advertisements
प्रश्न
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:
पर्याय
Rs. 1000
Rs. 750.87
Rs. 800
Rs. 947.70
Advertisements
उत्तर
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
संबंधित प्रश्न
If n2 = 12345678987654321, what is n?
Choose the most appropriate option:
A man earns ₹ 20 on the first day and spends ₹15 on the next day. He again earns ₹20 on the third day and spends ₹15 on the fourth day. If he continues to save in this way, how soon will he have ₹60 in hand?
Choose the most appropriate option:
A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 20 days, she has to pay Rs. 1000 as hostel charges whereas a student B, who takes food for 26 days, pays Rs. 1180 as hostel charges. Find the fixed charges and the cost of food per day.
The length of a square is increased by 15% and breadth decreased by 15%. The area of the rectangle so formed is
A man sells 5 articles for ₹15 and makes a profit of 20%. Find his gain or loss percent if he sells 8 such articles for ₹18.40.
If 0.06% of a number is 84, then 30% of that number is
72% of students in a class took Physics and 44% took Mathematics. If each student took Physics or Mathematics and 40 took both, the total number of students in the class would be
A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had
A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets?
If 20% of a = b, then b% of 20 is the same as
