Q.

There are a total of  ‘9,000,000’ 7-digit numbers.


see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

True

b

False  

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Given to find the number of 7-digit numbers.
We know that between the highest 7-digit number and the smallest 7-digit number are all the 7-digit numbers.
Thus, finding the highest and smallest 7-digit number respectively
The highest 7-digit number is 9,999,999 and the smallest 7-digit number is 1,000,000.
Now, the total number of 7-digit numbers will be the difference of the highest and smallest 7-digit number plus one.
That is, (9,999,999-1,000,000) +1 = 8,999,999 +1
= 9,000,000
Therefore, there are a total number of ‘9,000,000’ 7-digit numbers.
The given statement is true.
Hence, the correct option is 1.
 
Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
There are a total of  ‘9,000,000’ 7-digit numbers.