The average of 50 numbers is 30 If two numbers 35...

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Examveda

The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining numbers is nearly:

A. 28.32

B. 29.68

C. 28.78

D. 29.27

Answer: Option B

Total sum of 48 numbers,
= (50 × 30) – (35 +40)
= 1500 – 75
= 1425
Average = $$\frac{{1425}}{{48}}$$ = 29.68

This Question Belongs to Arithmetic Ability >> Average

Hrdream Vision2018 :

5 years ago

how total came 48
Irfan Md :

6 years ago

can I solve this problem in this way,
let the sum of remaining numbers is x, then
the average is (x+35+40) /50=30
=>x/50+75/50=30
=>x/50=30-75/50
but i m getting wrong answer,why?
please explain
Akshay Parbhankar :

7 years ago

Left 2 no. 35&40 than
50-2=48
Surendhar :

9 years ago

How to get Total Sumo of 48 Numbers? pls explain the formula