If X% of Y is 100 and Y% of Z is 200, find a relation between X and Z.
The angle between the minute hand and the hour hand of a clock when the time is 8.30, is:
The sum of the third and ninth term of an AP is 8. Find the sum of the first 11 terms if the series is.
What is the sum of all positive integers up to 1000, which are divisible by 5 and are not divisible by 2?
The equation of the line joining the points (-2,3) and its reflection point about the origin is:
The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.
To solve the equations I. a² - 13a + 42 = 0 and II. b² - 15b + 56 = 0, what is the relationship between the values of a and b?
Pointing to a person, a man said to a woman, "His mother is the only daughter of your father." How was the woman related to the person ?
A shopkeeper marks up the price of sugar by 20% and gives a discount of 5%. He even uses a false balance which reads 1 kg for 750 grams. What is his total profit percentage?