Difference of two natural numbers is always
an integer
a natural number
a whole number
a positive number
HCF of two numbers is 9 and their LCM is 270. If the sum of the numbers is 99, their difference is equal to
18
15
12
9
D.
9
Let the numbers be x and y.
According to the question,
LCM x HCF = 270 x 9 = xy and x + y = 99
Mode of the given data 25, 23, 22, 21, 24, 23, 25, 23, 22, 21, 23, 24, 23, 22, 23 is
23
22
21
24