Question

2985 is rounded off to the nearest hundred and the nearest tens. The difference between the two values is
(a) 5
(b) 100
(c) 10
(d) 150

Answer 1

In 2985 the last two digits i.e., 85 is greater than 50.
Hence, 1 will be added to the 3rd last digit and the last two digits will become zero.
After rounding to nearest hundred we will get 3000.
Again, In 2985 the last digit i.e., 5 is equal to 5.
Hence, 1 will be added to the 2nd last digit and the last digit will become zero.
After rounding to nearest ten we will get 2990.
Required difference = 3000 − 2990 = 10
Hence, the correct answer is option (c).