Shirin’s father is four times as old as she is. In 18 years he will be exactly twice as old as she. Find their present ages.
Thrice a number decreased by 5 exceeds twice the number by a unit. Find the number.
The number of three consecutive even integers is 36. Find the smallest of them.
Sana is senior to Mona by 18 years. After 6 years Sana will be twice as old as Mona. Find the Mona’s present age.
Rehan buys a book and a pen and pays Rs 50 for both. The book costs Rs 8 more than twice the cost of the pen. Find the cost of the book.
In 12 years a man will be twice as old as he was 12 years ago. Find his present age.