Mass of a block A is 2.35 kg less than the mass of block B. The total mass of the two blocks is 4 kg and 50 g. What is the mass of block B in kg?
- 2.15
- 3.2
- 6.4
- None of these
Explanation
Since the mass of block A is 2.35 kg less than the mass of block B, we can write:
Mass of block A = x - 2.35
The total mass of the two blocks is given as 4 kg and 50 g, which is equivalent to 4.05 kg (converting 50 g to 0.05 kg).
We can set up the equation:
x + (x - 2.35) = 4.05
Combine like terms:
2x - 2.35 = 4.05
Add 2.35 to both sides:
2x = 6.4
Divide by 2:
x = 3.2
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