There are four numbers. Average of the first three is 15 and of last three is 16. If the last number is 19, find the first number.5
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Q: There are four numbers. Average of the first three is 15 and of last three is 16. If the last number is 19, find the first number.
- 116true
- 220false
- 319false
- 4None of thesefalse
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