In how many different ways can the letters of the word ‘STRESS’ be arranged?

16 children are to be divided into two group A and B consisting of 10 and 6 children. The average percent marks obtained by the children of Group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of Group B?

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be 

23+ 3+33+333+3.33=?

A man standing on the bank of river observes that the angle subtended by a tree on the opposite bank is 60°. When he retrieves 36 m from the bank, he find that the angle is 30°. The breadth of the river is

Find the least number exactly divisible by 12,15,20,27 ?

Directions: The bar graph given below shows the spending of family income on various items and savings during 1993. Observe the graph and answer the following questions:

If the total income of the family during 1993 was ₹ 100000, the savings of the family in 1993 was: 

How many even three-digit numbers can be formed from the digits 1 , 2 , 5 , 6 and 9 without repeating any of the digits?