Calvin and Phoebe each have 8 more pastries than Frank but only five less than Grace. If Grace has 30 pastries, calculate the total number of pastries that the four have? Think carefully first, then make a decision:
If Grace has 30 pastries, then both Phoebe and Calvin each have 30 - 5 = 25 pastries. The total number of pastries that Phoebe and Calvin have is 25 + 25 = 50. Together, Phoebe, Calvin, and Grace have 50 + 30 = 80 pastries. Since Calvin and Phoebe each have 8 more pastries than Frank, then Frank has 25 - 8 = 17 pastries. Altogether, the four have 17 + 80 = 97 pastries. So, the answer is 97.