Question

Gold coin, all of different weight. she gives the 24 lightest coins, which weigh 45% of the total weight, to brennan. she gives the 13 heaviest weigh 26% of the total weight. she gives rest of the coins how many coins did blair receive

Answer 1

Let the total number of coins be x
and total weight of coins be X

Thus
According to question

Number of lightest Coins = 24
Weight og lightest coins = 45% of X
                                      = 0.45 X
Also
Number of heaviest cojns = 13
Weight of heaviest coins = 26% of X
                                        = 0.26 X
Thus
Weight of rest of Coins = X - [ 0.45X + 0.26X ]
                                      = 0.29 X
                                       = 29 % X