Question

Which of the following weights will balance a 1 kg block in a weighing balance?

• A. 1 x 500g, 3 x 250g
• B. 3 x 250g, 2 x 200g
• C. 3 x 250g, 4 x 50g
• D. 1 x 500g, 2 x 250g

Answer 1

The correct option is D 1 x 500g, 2 x 250g

The set of standard masses whose sum is equal to 1 kg will balance the block.

1. 1 x 500 g, 3 x 250 g: Total mass = 1.25 kg
2. 3 x 250 g, 2 x 200 g: Total mass = 1.15 kg
3. 3 x 250 g, 4 x 50 g: Total mass = 0.95 kg
4. 1 x 500 g, 2 x 250 g: Total mass = 1 kg

Hence, combination of 1 x 500 g and 2 x 250 g weights will balance 1 kg weight.