If the average of three consecutive even numbers is 34, find the largest of these numbers.
A certain number x is greater than 10. What is the unit digit of x!?
In a classroom of 125 students, 75 are male students. What percent of the classroom is female?
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?
Two numbers are first increased by 10% and then reduced by 10%. What is the final ratio of the numbers?
In a row of trees, a tree is 12th from the left end and 14th from the right end. How many trees are there in the row?
39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?
In a two-digit, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:
The sum of the ages of a mother and a daughter is 50 years. Also, 5 years ago the mother's age was 7 times the age of the daughter. The present ages of the mother and the daughter respectively are: