What should be subtracted from the product of 0.527 and 2.013 to get 1?

Correct option is C

Given:
We need to subtract a number from the product of 0.527 and 2.013 to get 1.
Solution:
Let the number to be subtracted be 'x'. Therefore,
Product - x = 1
​$$x = \text{Product} - 1\\\text {Product} = 0.527 \times 2.013 = 1.060851$$​​
x = 1.060851 - 1
x = 0.060851