Find the highest common factor of 36 and 84.
What is the average of first five multiples of 12?
If P is 20% less than Q, then Q is how much % more than P?
The perimeter of a triangle is 28 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle?
In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?
If the interest in the previous question was calculated half-yearly, what would the final loan amount be with interest?
Pointing to a woman, Rahul said, "She is the daughter of the woman who is the mother of the husband of my mother". Who is the woman to Rahul?
In a society, 50% of the people play both cricket and football. If 32% of people play only cricket and 9% of people play both cricket and football, find the percentage of people who play only football.
It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the car is:
A student reaches his school 15 minutes before the scheduled time by going there from his house at a speed of 5 km/h, and reaches 9 minutes late by going with a speed of 3 km/h. What is the distance between his house and the school?