आज वरुण का जन्मदिन है। आज से एक वर्ष बाद उसकी आयु, 12 वर्ष पहले की उसकी आयु की दोगुनी हो जाएगी। वरुण आज कितने वर्ष का है?

The tenure of a CEO after 5 years is 20% more than the tenure of a Manager at that time, and the tenure of a Clerk is 8 years less than the Manager's tenure. If the CEO's present tenure is 5 years more than twice the Clerk's present tenure, then what is the sum of the present tenures of the CEO, Manager, and Clerk?

A family consists of four persons A, B, C, and D. The sum of the ages of A and C is 85, and the sum of the ages of B and D is 60. The age of C is 15 years more than D. The age of B is 5 years less than C. Find the age of B after 10 years.