1 Man can do a work =6×12=72days 1woman Can do a work =8×18 =144days 1 child can do a work = 18×10=180days Now- (4men+12men+20children) can do a work in 2days = (4/72+12/144+20/180)2 = (1/18+1/12+1/9)2 = (9×2/36) =1/2 72 men can do a work in 1 day. The remaining ½ work can be done in a 1 day = 36men
The ratio of males and females in a zoo is 4:5 respectively and the percentage of children among males and the percentage of children among females are ...
A mixture contains milk and water in the ratio 7:5. If 60 liters of this mixture is replaced with 60 liters of water, the ratio of milk to water becomes...
A sum of Rs. 597 is divided among X, Y and Z such that X gets Rs. 106 more than Y. Y gets Rs. 58 more than Z. Find the share of Z?
Ratio of number of book to number of pen sold by a shopkeeper is 21:12, respectively while ratio of number of pen to number of pencil sold by the same s...
Rs. 10400 was divided among A, B and C in the ratio 2:3:3. B kept Rs. 1200 for himself, gave Rs. 500 to his mother and divided the remaining money among...
Shops 'A' and 'B' together purchased a total of 9,200 notebooks in the ratio of 2:7 for shop 'A' and 4:9 for shop 'B'. Shop 'A' managed to sell 25% of i...
In an office, the ratio of the number of males to number of females is 12:7. If 2 males joined the class and 8 females left the class, then the ratio of...
The ratio between two numbers is 2:3. If each number is increased by 6, the ratio between then become 4:5, find the difference between numbers.
The raw material cost of an article is 1/3 of its manufacture cost. If the cost of manufacturing is decreased in the ratio of 4 : 3 and the cost of its ...
Marks scored by A and B in a test are in the ratio 13:9 respectively. If B had scored 8 more marks, then marks scored by A would be 30% more than that o...
