k is an integer such that, 9 k^2 99 If MAXIMUM value of k - Maths - Number Systems

Question

k is an integer such that,
9 < k^2 < 99
If MAXIMUM value of k = p and
A MINIMUM value of k = q
What is ( p - q ) ?
Hint : ( k can take both positive and negative values )

a) 5 b) 8 c) 13 d) 18

Brijendra Pal · Accepted Answer

Hi, 9<k2<99so here k can be ±4,±5,±6,±7,±8,±9because taking -4, 16 lies between 9 and 99 and taking value 9,  lies between 9 and 99so here maximum value of k = 9 = p and minimum value of k = - 9 = q so p-q = 9--9= 18

k is an integer such that, 9 < k^2 < 99 If MAXIMUM value of k = p and A MINIMUM value of k = q What is ( p - q ) ? Hint : ( k can take both positive and negative values ) a) 5 b) 8 c) 13 d) 18

k is an integer such that,
9 < k^2 < 99
If MAXIMUM value of k = p and
A MINIMUM value of k = q
What is ( p - q ) ?
Hint : ( k can take both positive and negative values )

a) 5 b) 8 c) 13 d) 18