If the radius of the circle with center O is 7 and the measure of angle AOB is 100, what is the best approximation to the length of arc AB?
A certain animal in the zoo has consumed 39 pounds of food in six days. If it continues to eat the same rate, in how many more days will its total consumption be 91 pounds?
Sheila works 8 hours per day on Monday, Wednesday and Friday, and 6 hours per day on Tuesday and Thursday. She does not work on Saturday and Sunday. She earns $324 per week. How much does she earn in dollars per hour?
The digits of a positive integer, are in A.P. and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number.
Monu and Sonu were playing number games. Monu asked Sonu to select a two digit number such that the sum of the digits is 11 and if the digits are interchanged then the new number must be 9 more than the original number. Which number can Sonu select?
There are 50 tickets numbered from 1 to 50 in a box. A ticket is drawn. What is the probability that the ticket drawn (i) Have an odd number. (ii) Have a number which is a perfect cube.