Exams

A boy found the answer for the question "Subtract the sum of 1/4 and 1/5 from unity and express the answer in decimals" as 0.45. The percentage of error in his answer was

When an unbalanced force acts on an object

If 15% of x is three times of 10% of y, then x:y = 

A person sells wheat at a profit of 30%. If he reduces its selling price by Rs 60, then he suffers a loss of 10%. What was the initial selling price (in Rs)of the wheat?

What is the least number of complete years in which a sum of money put out at 40% annual compound interest will be more than trebled?

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P- A sensitive mind easily absorbs the vibrations emanating from the thought of the people it associates with.
Q- We often say that a person is known by the company he keeps.
R- The violent can be made calm by exuding thought of love and compassion.
S- Visits to holy places are considered good because the good thoughts of the holy people gathered there and the ensuing vibrations definitely
affect one in a positive fashion.

If x + y = 5, x3 + y3 = 35, then what is the positive difference between x and y?

Magnesium (Mg) + Oxygen (O2) = ?