The adverage age of three people running for election is 42. A fourth person joins the race and adverage drops to 40. What is the fourth per

Question

The adverage age of three people running for election is 42. A fourth person joins the race and adverage drops to 40. What is the fourth person’s age? A: 32 B: 34 C: 35 D: 36 E: 40

in progress 0
Ngọc Hoa 6 months 2021-08-07T16:26:08+00:00 1 Answers 6 views 0

Answers ( )

    0
    2021-08-07T16:27:59+00:00

    Answer:

    The fourth person is 34 years old.

    Step-by-step explanation:

    Step 1: Find ages of the 3 people running for election

    42*3=126  Their ages combined is 126.

    Step 2: Find the ages of the 4 people running for election.

    40*4=160

    Step 3: Subtract the two ages.

    160-126=34.  

    The 4th person is 34.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )