P can do a piece of work in 10 days. Q can do it in 16 days. With the help of R, they finish the work in 4 days. In how many days can R alone do the whole work?
There are 3 natural numbers. If the average of any 2 numbers is added with the third number 34, 30 and 28 will be obtained. Find the numbers.
The sum of four consecutive counting numbers is 154. Find the smallest number?
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
Find the number of Digits required to write down the number of Pages in a 500 page book?
In a class, 2/5 of the students are girls and rest are boys. If 4/9 of the girls and 1/3 of the boys are absent, what part of the total number of studen...
Find the average of first 24 whole numbers.
What is the average of first 24 multiples of 2.4?
Sum of two digits of a two digit number is 11. When digits of the number are reversed then number formed is 45 more than the original number. Find the ...
Find the fourth proportional to 2, 3, 6.
A number 254786ab is completely divisible by 40, What is maximum value of a and b?
