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. - Study24x7
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3643 followers study24x7 27 Jul 2020 12:28 PM study24x7 study24x7

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.

A

16

B

20

C

19

D

None of these

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