A 20 N metal block is suspended by a spr...

A `20 N` metal block is suspended by a spring balance. A beaker containing some water is placed on a weighing machine which reads `40 N`. The spring balance is now lowered so that the block gets immersed in the water. The spring balance now reads `16 N`. The reading of the weighing machine will be.

36 N

60 N

44 N

56 N

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