Question

Jemima has three boxes whose total weight is 51 1

5 kg. Box B weighs 5 1

2 kg more than box A and box C

weighs 3 1

5 kg more than box B. Choose the correct statement.

[1] Box A weighs 17 5

6 kg.

[2] Box C weighs 21 1

30 kg.

[3] Box A weighs 42 1

2 kg.

[4] Box B weighs 12 1

3 kg.

Answer 1

$x-box\,\,A\\x+5.12 -\,\,box\,\,B\\x+5.12+3.15-box\,\,C\\Then\\x+\left( x+5.12 \right) +\left( x+5.12+3.15 \right) =51.15\\3x+13.39=51.15\\3x=37.76\\x=12.5867\\x+5.12=17.7067\\x+5.12+3.15=20.8567\\No\,\,correct\,\,answer$