let the depth of block in water is x
and depth of the block in oil = 5 - x
balancing the forces on the block
weight of the wood block - total buoyant force = 0
960 * A * 5 * g - 925 * A * (5 -x) * g - 1000 * A * x * g = 0
960 * 5 - 925 * (5 - x) - 1000 * x = 0
solving for x
x = 2.33 cm
the distance x is 2.33 cm
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