A man willed his property to his three sons ---- to the youngest he gave Rs. 698.49, to the second 3.4 as much as to the youngest, and to the eldest 3.7 times as much as to the second. What was the value of his estate?
In an examination a student was asked to find (3/14) of a certain number. By mistake he found (3/4) of it. His answer was 150 more than the correct answer. The given number is