How many 2-digit positive integers are divisible by 4 or 9?
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0
we take c.d. =36 because
4*9=36
4*9=36
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Answer:
Step-by-step explanation:
The least 2-digit positive integer is 18
The highest integer is 72
a = 18
d = 18
l = 72
l = a + (n-1)d
72 = 18 + (n-1)18
54 = (n-1)18
n-1 = 54 ÷ 18
= 3
n = 3 + 1
= 4
karthickshiva1015:
l and an are same
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