Advertisements
Advertisements
Question
The number of ‘three digit numbers’ which are multiples of 9 are:
Options
101
99
100
98
Advertisements
Solution
100
Explanation:
Smallest and largest 3 digit number multiplied by 9 are 108 and 999
By AP
a = 108 an = 999 d = 9 n = ?
999 = 108n + (n − 1) 9
n = 100
APPEARS IN
RELATED QUESTIONS
If a + b = a – b , then the angle between a and b will be:
Cos3x dx is equal to:
d (sec-1x) is equal to:
A surd which has rational factor other than unity and other factors being irrational is said to be
In algebra, we use alphabets such as x, y, z to denote
The number of natural numbers of two or more than two digits in which digits from left to right are in increasing order is
One-third of one-fourth of a number is 12. Then the number is
The average of three prime numbers lying between 47 and 74 is 191/3. The greatest possible sum between any two out of the 3 prime numbers is
If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the following will be divisible by 11?
LCM of 22, 54, 108, 135, 198 is
