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Total work = Number of days×1 day’s work (efficiency) Total work = LCM (6, 12, 4) = 12 unit 1 day’s work of (A+B) = 12/6 = 2 unit 1 day’s work of (B + C) = 12/12 = 1 unit 1 day’s work of (A + B + C) = 12/4 = 3 unit Now, 1 day’s work of A = 3 – 1 = 2 1 day’s work of C = 3 – 2 = 1 1 day’s work of A and C = 2 + 1 = 3 A and C together can complete the job in = 12/3 = 4 days
The ratio of the monthly expenditure to monthly income is 4:5. If the salary increased by Rs. 4550 such that ratio of old saving and new saving is 2:3, ...
The ratio of two numbers is 9: 5. If 8 is added to the larger number and 4 is subtracted from the smaller number, the greater number becomes twice the ...
Three numbers are in ratio 4:5:7. If the sum of the squares of those three numbers is 360 then find the sum of the three numbers.
If three numbers are in the ratio 5:6:8 and the sum of their squares is 1250, then the product of those numbers is:
In a college the ratio of boys and girls are in the ratio 7:9. 65% girls and 40% boys were absent. Find the girls present if the total number of student...
In a mixture of 40 liters, the ratio of milk to water is 5:3. How much milk must be replaced by water so that the new ratio becomes 1:1?
In an exam, Neha scored 10 marks less than the passing marks while Rahul scored 25 marks more than the passing marks. If the rati...
The ratio of two numbers 'a' and 'b' is 6:2, respectively. Whereas the ratio of 'b' and 'c' is 10:11, respectively. When 14 is added to 'a', it becomes ...
The entry ticket at a fun park was increased in the ratio 7 : 9, due to which footfalls fell in the ratio 13 : 11. What is the new daily collection (in ...
