Number System Questions for Competitive Exams

A rational number between and is :

In a school of the boys are same in number as of the girls and   of the girls are same in number as    of the boys. The ratio of the boys to girls in that school is: 

If * means adding 6 times the second number to the first number then ( 1 * 2 ) *   3 equals : 

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

What is the sum of two consecutive even numbers, the difference of whose square is 84? 

A man spends   of his income on food,    of his income house rent and   of his income on clothes. If he still has Rs. 400 left with him, his income is: 

How many natural numbers divisible by 7 are there between 3 and 200? 

A number when divided by 296 gives a remainder 75. When the same number is divided by 37 the remainder will be: 

Which of the following is the largest fraction    

Two number 11284 and 7655, when divided by a certain number of three digits, leaves the same remainder. The sum of digits of such a three - digits number is: