Tag: math & puzzles

The oldest Indian language is:

Badminton is the national sport in

Where is the sports stadium, Green Park, located?

Madagascar Island, there are x dodos in a particular year. 30 dodos in a thousand of the original population die every year and 25 dodos in a thousand of the original population are born every year. In how many years will the population of dodos halve itself ?

A cube is divided into 8 equal cubes. Each of these cubes is further sub-divided into 8 equal cubes. If the original cube’s sides are painted blue, then what is the probability that exactly 2 sides of a small cube is painted blue ?

There are 4 quarts in a gallon. A gallon of petrol sells for Rs.12 and a quart of the same petrol sells for Rs.5. The owner of a rental agency has 6 machines and each machine needs 5 quarts of petrol. What is the minimum amount of money he must spend to purchase enough petrol?

If x + y > 4 and x < 3, then y > 1 is true. Is this statement true ?

36 identical chairs must be arranged in rows with the same number of chairs in each row. Each row must contain at least 3 chairs and there must be at least 3 rows. A row is parallel to the front of the room. How many different arrangements are possible ?

The operation * applied to a number gives as its result 10 subtracted from twice the number. What is ((*9) ?

The incomes of two people are in the ratio 4 : 5 and expenditures in the ratio 7 : 8 respectively. The total savings between the two of them is Rs.3000 and that is split in the ratio 1 : 2. Find their total income.