Question

Eight people enter into a partnership. 6 of them bring in rs. 30 each. the seventh person bring in rs. 10 more than the average of eight persons, and the eighth person brings in rs. 55. what is the total sum brought in

Answer 1

6 people bring - 30 rs each
8th person brings - 55 rs

AVERAGE = 30+30+30+30+30+30+55/7
= 235/7
=approx 33.6
235+33.6
=268.6 rs
round off to 269

Answer 2

Answer: 280

Step-by-step explanation:

1. 6 people brings Rs. 30 each so, 6 x 30 = 180

and 8th person brings Rs. 55

2. Let us assume 7th person brings Rs. x

3. Now its given that, x = average + 10, where average =  (180 + 55 + x)/8

Solving this,

x = (180 + 55 + x)/8 + 10

x = (235 + x)/8 + 10

x = (235 + x + 80)/8   //Taking LCM

8x = 315 + x

7x = 315

x = 45

So sum = 30+30+30+30+30+30+45+55  

i.e. Rs. 280