Question

21. Shipra has three boxes A, B and C. Box A weighs 3 1/4 kg more than box B and box C weights 2 3/4 kg more than box B. If the total weight of the three boxes is 72 kg, find the weight of box C. ​

Answer 1

let the weight of box B be X

so weight of box A =3 1/4 +B

13/4+X

and weight of box C=2 3/4+B

11/4+X

a/q

sum of weight of all 3 boxes =72 kg

X+13/4+X+11/4+X=72

3X+24/4=72

3X+6=72

3X=72-6

3X=66

X=66/3

X=2

weight of box C = 11/4+X

11/4+2

19/4 kg

so weight of box C is 19/4 kg