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· Paleontologists recently announced the discovery of new giant dinosaur species Meraxes gigas that had massive head and tiny forelimbs, just like Tyrannosaurus rex . · The new dinosaur species has been named after a fictional dragon in the Game of Thrones book series . About Meraxes gigas : · The skull of the dinosaur is just over four feet long, while the entire animal would have been some 36 feet long . · its weight to be around four metric tons . Its arms were two feet long . · T - rexes went extinct 20 million years before Meraxes gigas arose, and the two species were far apart on the evolutionary tree . · The Meraxes belong to tyrannosaurids and carcharodontosaurids group of dinosaurs . · They roamed the Earth between 90 to 100 million years ago during the Cretaceous period when the region had more forests and much closer to the sea . · The average age of these dinosaurs was 40 and its skull was replete with crests, furrows, bumps and small hornlets .
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Sum of the present ages of A, B, C and D is 70 years. After 5 years ratio of their ages is 6:4:3:2. What is C’s present age?
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A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.