Question
Tiffany, Irene, Harry and Tina shared some pens. Tiffany and Irene took 15 of the total number of pens while Harry and Tina took the rest. Irene had twice as many pens as Tiffany and Tina had 40 pens. Given that Tina had twice as many pens as Irene, how many pens were there altogether?
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Tiffany, Irene, Harry and Tina shared some pens. Tiffany and Irene took 15 of the total number of pens while Harry and Tina took the rest. Irene had twice as many pens as Tiffany and Tina had 40 pens. Given that Tina had twice as many pens as Irene, how many pens were there altogether?