Question

Ira, b, c, d, e are five consecutive odd numbers, their average is:​

Answer 1

Answer:

a,b,c,d,e are five consecutive odd number

b=a+2

c=a+4

d=a+6

e=a+8

Avg =

5

a+b+c+d+e

=

5

a+a+2+a+4+a+6+a+8

=

5

5a+20

Avg =a+4

Hence, option 'D' is correct

Answer 2

Answer:

Answer: 14 is the median.

Step-by-step explanation:

Let x=the first even number

Let x+2=the second consecutive even number

Let x+4=the third consecutive even number

Let x+6=the fourth consecutive even number

Let x+8=the fifth consecutive even number

x+(x+2)+(x+4)+(x+6)+(x+8)=70 [Given]

5x+20=70 [Addition]

5x=50 [Subtract 20 from both sides]

x=10 [divide both sides by 5]

x+2=12 [Addition]

x+4=14 [Addition]

x+6=16 [Addition]

x+8=18 [Addition]

Check:

x+(x+2)+(x+4)+(x+6)+(x+8)=70 [Given]

10+12+14+16+18?=70 [Substitution]

70=70 [Addition]

To find the median:

Arrange the numbers from smallest to largest.

Since there are an odd number of numbers, the median is the number in the middle.

10+12+14+16+18

Answer: 14 is the median.

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