B Nirmala Shastry Solutions for Exercise 4: EXERCISE 4.4

Find a two-digit number divisible by $2$, fulfilling the following conditions whose tens digit is $3$ times the ones digit
 

Find a two-digit number divisible by $2$, fulfilling the following conditions whose ones digit is twice the tens digit
 

Find a two-digit number divisible by $2$, fulfilling the following conditions the product of whose digits is $14$.
 

Find a two-digit number divisible by $2$, fulfilling the following conditions the difference between whose digits is $7$.

Find a two-digit number divisible by $5$ if the product of the digits is $45$.

Find a two-digit number divisible by $5$ if the sum of the digits is $12$.

Find a two-digit number divisible by $5$ if the difference of the digits is $4$.

Find a two-digit number divisible by $5$ if the product of the digits is $30$.