Question

Out of four numbers, the average of first 3 is 15 and the
ge of the last 3 is 16. If the last number is 19, the first
number is:
a. 19
b. 15
d. 18
c. 16​

Answer 1

Answer:

here your answer dear ....c))))16

Answer 2

Answer:

Sum of the first 3 numbers = 3 * 15 = 45.

Sum of the last 3 numbers = 3 * 16 = 48.

2nd+ 3rd + 4th = 48

2nd + 3rd + 19 = 48

2nd + 3rd = 29.

Again ,

1st + 2nd + 3rd = 45

1st + 29 = 45

1st = 45 - 29

1st = 16.

B is the correct answer.