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Fraction of work done by 'A' and 'B' = (18/30) = (3/5) Fraction of work done by 'C' = 1 - (3/5) = (2/5) So, number of days taken by 'C' to complete the entire work = 12 ÷ (2/5) = 30 days So, time taken by 'C' to complete 75% of the work = 30 × 0.75 = 22.5 days
How many numbers up to 800 are divisible by both 3 and 5?
What least number must be added to 6834 to get a number exactly divisible by 18?
What is the number of divisors of 360?
The arithmetic mean of two values ‘a’ and ‘b’ is 16, and their geometric mean is 10√2. Find the positive difference between the numbers, given...
À two-digit number decreases by 18 when its both digits are written in reverse order. If unit digit of original number is equal to the unit digit of 22...
Which of the following should be replaced with # in the number 12324#84 so that it becomes a multiple of 8?
The sum of (p/q)+(q/r)+(r/s)+(s/t) = (239/60). The value of ‘q’ is one less than the value of ‘s’. The average of ‘p’ and ‘s’ is 4. The ...
A and B are positive integers. If A + B + AB = 65, then what is the difference between A and B (A, B ≤ 15)?
In an examination, the number of those who have passed and the number of those who failed were in the ratio of 40 : 7. If 7 more had appeared and the nu...
