For the following questions answer them individually
D alone can complete half of a work in 100 days. In 47 days what percentage of the work will be completed by D?
Instead of increasing a number successively by 40 percent and 60 percent, it is decreased by 44 percent. Resultant value is what percentage of the required correct value?
Amit is thrice as good a workman as Vinit and therfore is able to finish a work in 32 days less than Vinit. In how many days can they together complete the same word?
A man buys 15 mangoes for a rupee. How many mangoes had he sold for a rupee so that there is a loss of 25 percent?
The ratio of the present age of the two brothers is 11 : 13 and 6 years ago the ratio of their ages was 4 : 5. What will be the ratio of their ages after 5 years?
The simple interest received on a sum is 81/100 of the sum. The number of years is equal to the annual rate of interest. what is the annual rate of interest?