Question

If the numbers 43048, 42544, 43486, 42454 and 43844 are arranged in a suitable order, then what will be the difference between the greatest and the smallest numbers?
A. 1300
B. 1090
C. 1390
D. 796

Answer 1

Hint: Here we have 5 numbers in which all are above 40000. So first arrange these 5 numbers in an ascending order or an increasing order. After arranging the numbers, we will have the smallest number first and the greatest number last. Subtract the first number from the last number to get the answer.

Complete step-by-step answer:
We are given to find the difference between the greatest and the smallest numbers when the numbers 43048, 42544, 43486, 42454 and 43844 are arranged in a suitable order.
The given numbers are 43048, 42544, 43486, 42454 and 43844.
Let us arrange these numbers in an increasing (ascending) order.
In the descending order, the smallest number comes first and the largest number comes last. As we can see 42454 is the smallest number and then 42544 and then 43048 and then 43486 and then the greatest and last number 43844.
So the smallest number we have got is 42454 and the largest number is 43844.
Their difference is $ 43844 - 42454 = 1390 $
So, the correct answer is “Option C”.

Note: Another method to arrange the given numbers in a suitable order.
We can also arrange the numbers in the decreasing order or descending order.
In the descending order, the largest number comes first and the smallest number comes last.
As we can see the largest number is 43844 and then 43486 and then 43048 and then 42544 and then the smallest and last number 42454.
The difference between the greatest and the smallest numbers is $ 43844 - 42454 = 1390 $ .