How many numbers less than 1000 are multiples of both 10 and 13 ?
Options:
A . 9
B . 8
C . 6
D . 7
Answer: Option D Take LCM of 10 and 13 = 130 Any number divisible by 130 will be divisible by 13 and 10 i.e., 130, 260, 390, 520, 650, 780 & 910 ⇒ total numbers are 7
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