Zoe and her friends have decided to save some of their pocket money to go to a carnival just outside their town.
They save for five months, and the amount each one saves during each month is as shown below.

How much more money did Betty and Kate save together than Zoe and Delphy?

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Solution

Amount saved by Zoe:
12 + 10 + 15 + 16 + 19 = 72 dollars

Amount saved by Betty:
18 + 14 + 15 + 16 + 20 = 83 dollars

Amount saved by Delphy:
14 + 16 + 14 + 18 + 13 = 75 dollars

Amount saved by Kate:
15 + 19 + 17 + 16 + 17 = 84 dollars

Thus, the amount saved by Zoe and Delphy:
72 + 75 = 147 dollars

The amount saved by Betty and Kate:
83 + 84 = 167 dollars

Thus, the amount saved more by Betty and Kate = Amount saved by them – Amount saved by Zoe and Delphy
= 167 – 147 = 20 dollars

Hence, the correct answer is 20 dollars.

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Zoe and her friends have decided to save some of their pocket money to go to a carnival just outside their town. They save for five months, and the amount each one saves during each month is as shown below. How much more money did Betty and Kate save together than Zoe and Delphy?

Zoe and her friends have decided to save some of their pocket money to go to a carnival just outside their town.
They save for five months, and the amount each one saves during each month is as shown below.

How much more money did Betty and Kate save together than Zoe and Delphy?