TCS Equations Quiz-1

Which two digit number has its digits reversed when 2 is added to its double? (Example : xy * 2 = pq => pq+2 = xy )

If 43 times of two digit numbers is 34 times of two digit no .and sum of ( number and reverse of the number) is 14 then what is the number?

On a 26 question test, 5 points were deducted for each wrong answer and 8 points were added for right answers. If all the questions were answered how many were correct if the score was zero?

How many prime numbers less that 100 and greater than 3 are of the form:4x+1 , 5y-1?

The current age difference between two persons is 25. 9 years before the elder one's age was 6 times that of the younger one. What is sum of their current ages?

Four times the first of three consecutive odd integers is 6 more than twice the third. The third integer is?