For the following questions answer them individually
The cost price of z21 aiticles is equal to the selling price of 15 articles. Find the gain or loss percentage.
What is the smn of the digits of the least number which when divided by 12, 16 and 20 leaves the same remainder 6 in each case and it is divisible by 9?
A shopkeeper bought an item for ₹4,500 and sold it at a loss of 5%. From this money, he bought another item and sold it at a profit of 10%. What is his overall profit?
If the simple interest charged for 9 months be 0.12 times the money borrowed, what is the rate percent per year?
If the ratio of three numbers A, B and C is $$2 : 3 : 5$$, and the sum of the squares of these numbers is 3800, then the value of C is:
If diagonal of a cube is $$\sqrt{108}$$ cm, then the volume (in $$cm^{3}$$) of the cube is:
The average speed of a train is 180% of the average speed of a car. The car covers a di stance of 990 km in 15 hours. The time taken (in hours) by the train to cover the distance of 891 km is:
A dealer allows his customers a discount of 20% and still gains 20%. If the cost price of an anicle is ₹960, what is its marked price ( in ₹)?
When 'x' is subtracted from each of the numbers 22, 39, 56 and 107, then the resulting numbers, in this order, are in proportional. What is the mean proportional between $$(x + 3)$$ and $$(3x - 7)$$?