Question

2. The greatest number which on rounding off to nearest hundred gives 4200 is​

Answer 1

Answer:

(1)  Half of 100 is 50. So, the smallest number that rounds to 500 is 500 - 50 = 450.

(or)  

Given the number is 500. As u can see the ten's digit is 0.

There is a rule:

If the digit is 0,1,2,3,4. Then the hundreds digit does not change and we have to round to the previous hundred.

500 ~ 450.

Therefore the smallest number which when rounded to 500 is 450.

(2)  The greatest number that round 500 to the nearest 100 would be 500 + 50 - 1 = 549. It won't be 550 because of 550 rounds to 600.  

Hope this helps!

Step-by-step explanation:

Answer 2

If would be 4249 rounded off to hundred