For the following questions answer them individually
When a number is successively decreased by 10 percent. 15 percent and 56 percent, then it becomes 20196. What is that number?
If 25 workers can build a wall in 10 days, how many days will it take for 20 workers to build a similar wall?
A is four times as good a workman as B and together they finish a piece of work in 84/15 days. In how many days can A alone finish the work?
In a mixture, milk and water are in ratio of 7 : 9. Some milk is added to the mixture because of which ratio of milk and water becomes 11 : 9. How much milk was added as a percentage of initial mixture?
What will be the compound interest (compounding annually) on a sum of Rs. 9000 at the rate of 32 percent per annum for 2 years?
A thief steals a car at 2:00 p.m, and drives it at 70 km per hour. The theft is discovered at 3:00 p.m. and the owner sets off in another car at 105 km an hour. At what time owner will overtake the thief?
In a bag, the ratio of black balls to white balls is 7:4. If there are 44 white balls, find the total number of balls in the bag.
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