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Let the marked price of the article be 10a According to the question, 10a - 10a × 10% = 720 ⇒ 9a = 720 ⇒ a = 720/9 = 80 So, the marked price of the chair = 10 × 80 ⇒ Rs. 800 Now, Profit on the chair when it is sold at marked price = 800 - 640 ⇒ Rs. 160 Profit % = (160/640) × 100 ⇒ 25 ∴ The profit percentage will be 25%
Find the number of zeros at the end of 78!.
What is the average of first 28 multiples of 2.8?
Each member of a picnic party contributed twice to their serial number. The total collection was Rs 3042. The (approximate) number of members present in...
Twin prime numbers are the prime numbers whose difference is always equal to 2. The number of twin primes between 35 and 100 is:
Consider three numbers whose total is 294. The first and second numbers are in a ratio of 5:7, and the second and third numbers are in a ratio of 7:9. D...
The cube of the difference between two given natural numbers is 1000, while the product of these two given numbers is 56. Find the positive difference b...
If (64)2 – (36)2 = 20Z, the value of z is
The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller n...
A lending library has a fixed charge for the first 7 days and an additional charge for each day thereafter. Sahil paid Rs . 215 for a book kept for 15 ...
The cost of 2 mouse and 3 keyboard is Rs.150 and that of 3 mouse and 2 keyboard is Rs.120. Find the cost of 5 mouse and 2 keyboard?
