Question

Which of the following is lesser than 123.045?

• A. 1230.3506
• B. 123.0445
• C. 123.0159
• D. 123.0451

Answer 1

Answer: (B), (C)

The correct options are
B 123.0445
C 123.0159

Let's compare the decimal numbers two at a time.
Comparing 1230.3506 and 123.045:
Since 1230 > 123, we have 1230.3506 > 123.045.
Comparing 123.045 and 123.0445:
Since the numbers before the decimal points are the same in both the decimal numbers, we have to compare the digits after the decimal point. First compare the tenth places. Since it's the same(0), we move on to compare the hundredths places, which also happens to be the same(4). Thus, we move on to the thousandths place. Since 5 > 4, we have 123.045 > 123.044.
Similarly, comparing the hundredth places as the tenth places are similar, we have 123.045 > 123.0159.
Similarly, comparing the ten thousandths places, we have 123.045 < 123.0451.
Thus, the decimal numbers less than 123.045 from the options are 123.0445 and 123.0159.