The difference between two angles of a triangle is 24^{0}. The average of the same two angles is 54^{0}.Which one of the following is the value of the greatest angle of the triangle?

45^{0}

60^{0}

66^{0}

72^{0}

Correct Answer : D

The average of five different positive numbers is 25. x is the decrease in the average when the smallest number among them is replaced by 0. What can be said about x?

How many five digit multiples of 11 are there, if the five digits are 3,4,5,6 and 7 in the same order?