Question
Which of the following numbers is divisible by
24?ÂSolution
A number is divisible by 24 if it is divisible by both 3 and 8. Divisibility by 3: A number is divisible by 3 if the sum of its digits is divisible by 3. Divisibility by 8: A number is divisible by 8 if the last three digits form a number divisible by 8. (b) 49512 A sum of digits= 4+9+5+1+2= 21 (divisible by 3) Last three digits= 512 (divisible by 8)
? = (597.98 ÷ (6.97 2.01 – 3.1)) × 12.9
1153, 1206, ?, 1326, 1393, 1464
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