Question

A gym owner has some blue weights and some pink weights. The blue weights are 10 kilograms each, and the pink weights are 3 kilograms each. The owner has 7 weights, and they weigh 49 kilograms in all. How many of each color weight does he have?

​ blue weights

​ pink weights

Answer 1

4 blue weights and 3 pink weights.

Blue wieghts 4(10) = 40 kg
Pink wieghts 3(3) = 9 kg

40+9= 49 kg