How many numbers between 1000 and 5000 are exactly divisible by 225 ?
Options:
A .  16
B .  18
C .  19
D .  12
Answer: Option B Answer: (b) First number (a) = 1125, Last number (an) = 4950, Divisible by (d) = 225, No. of terms (n) = ? No. of term formula, an= a+(n-1)d Then, 4950= 1125 + (n - 1) 225 3825= 225n - 225 4050= 225n n = 4050/225 = 18 Therefore, 18 numbers between 1000 and 5000 are exactly divisible by 225.
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