Question

There are 14 red balls and 9 blue balls in a basket. The total weight of blue and red balls is 128.61g. A blue ball is 2.79g heavier than red ball. Find the weight of blue ball? Please tell the answer with methode and statement..

Answer 1

Let the red ball be x
blue ball = 2.79+x
So 14 red ball = 14x
So 9 blue ball =9x +25.11
So total weight =
25.11+9x+14x =128.61
25.11+23x =128.61
23x =128.61-25.11=
23x= 103.50=
$x = \frac{103.50}{23}$
$x = \frac{10350}{23 \times 100}$
$x = \frac{10350}{2300}$
X=4.5

So red ball weight = 4.5g
So blue ball = 4.5g+2.79g
Blue ball = 7.29. Answer

Answer 2

the red balls =14
blue balls. =9
weight of 1 blue ball =2.79
weight of red balls = x
total weight of all balls= 128.61
to find= x
sol. 9 × 2.78 =25.11
14×x. = 128.61
128.61 - 25.11
14 = 103.5