Which of the following fraction is the smallest?

$$7\over 6 $$,$$7\over 9$$,$$4\over 5$$,$$5\over 7$$

A number when divided by 192 gives a remainder of 54. What remainder would be obtained on dividing the same number by 16 ?

A number when divided by 5 leaves a remainder 3. What is the remainder when the square of the same number is divided by 5 ? 

A number consists of two digits. If the number formed by interchanging the digits is added to the original number, the resulting number (i.e. the sum) must be divisible by

If two numbers are each divided by the same divisor, the remainders are respectively 3 and 4. If the sum of the two numbers be divided by the same divisor, the remainder is 2. The divisor is 

In a question on division, the divisor is 7 times the quotient and 3 times the remainder. If the remainder is 28, then the dividend is 

64329 is divided by a certain number, 175, 114 and 213 appear as three successive remainders. The devisor is

64329 is divided by a certain number. While dividing, the numbers, 175, 114 and 213 appear as three successive remainders. The divisor is?