It is equally wrong to record too many digits, since this implies greater ... Thus, significant figures are those digits that give meaningful but not ... 3.43+8.6=12.0 ... 8 x 10-4 we can calculate the pH from the definition of quantity.
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To round 115 to two significant figures, you first identify the two most significant digits, which are 1 and 1. The third digit, 5, is the deciding factor for rounding. Since 5 is equal to or greater than 5, you round up the last significant digit. Therefore, 115 rounded to two significant figures is 120.
124.68 significant figures means figures after the decimal, in the case after the 8, if the number after the significant figure is 4 or lower the last SF (significant figure) stays the same, if 5 or higher then you add one. for example the number 124.683 to one SF is 124.7, because 8 means you round the last number up (add one) * * * * * The above answer could no be more incorrect! It has confused decimal digits with significant digits. 124.683, to 2 sig digits is 120. The two non-zero numbers 1 and 2 and everything else 0.
120
120 EGGS
There are 240/2 = 120 of them