Question

solve it ....please.....

Answer 1

Hello,


Given that
The average of the 5 numbers is 281.
So,

The sum of the numbers is equal to
281*5 = 1405

Now ,

Average of first two numbers is 280

Sum of the numbers is 280 *2 = 560


Average of the last two numbers =178.5

Sum of last two numbers is equal to
178.5 * 2 = 357

Now ,
Sum of the first two and last two numbers is equal to
560 + 357 = 917

Now

The third number is equal to

Sum of all 5 numbers - sun of first two and last two numbers
So

The third numbers is equal to

1405 - 917 = 488


So ,
The third number is 488


Hope this will be helping you...