Weight of x

Number Theory Level pending

The mean weight per teacher in a group of seven teachers is 55 kg. The individual weight of six them are 52 kg, 58 kg, 55 kg, 53 kg, 56 kg, 54 kg, the weight of the other teacher if x kg, the the value of x is


The answer is 57.

Pratik Koshti by Pratik Koshti , 22, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

2 solutions

Vishnudatt Gupta
Apr 30, 2014

MEAN=A+B+C+D+E+F+G/7=55 (A,B,C,D,E,F,G ARE WEIGHTS OF TEACHERS AND G IS UNKNOWN)

53+55+56+54+58+52+G/7=385

G=57 KG

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Pratik Koshti
Apr 29, 2014

no. of teachers = 7 weight of six teachers = 328 kg Total weight of 7 teachers = mean * no. of teachers = 55 * 7 = 385 kg weight of x teacher = 385-328 = 57 kg

0 Helpful 0 Interesting 0 Brilliant 0 Confused

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...