Question

Jack’s age is 0.27 times the age of his father. His father’s present age is 45 years. Jack’s present age correct to one decimal place will be

• A. 12
• B. 12.1
• C. 12.2
• D. 12.3

Answer 1

The correct option is C

12.2

Jack’s present age= 0.27 $\times$ His father’s present age

= 0.27 $\times$ 45

= 12.15 years

Since there is 5 at the second decimal place, the first decimal place will be rounded off to next number (because if a digit is 5 or greater than 5, then its preceding digit can be rounded off to the next integer) i.e. 1 will be rounded off to 2.

Thus, 12.15 can be rounded off to 12.2.