Using divisibility tests, determine which of the following numbers are divisible by 2,3,5and 9: (I) 126 (ii) 672 (iii) 990 (iv) 2050 (v) 406839
Answers
Answered by
1
Step-by-step explanation:
as per the divisibility rule, a num is divisible by 2
if the ones digit is even
so from here we can eliminate last option 406839
while coming to divisibility rule 3 , the sum of digits of num is divisible by 3...
from divisibility rule 3 the fourth option is getting eliminated
while coming to divisibility rule 5, if the last digit is 0 or 5 then it is divisible by 5
so from the remaining options we have only one num which is divisible by 5 that is 990
so the answer is 990
Answered by
1
Answer:
(i) 126 is divisible by 2,3 and 9
(ii) 672 is divisible by 2 and 3
(iii) 990 is divisible by 2,3,5 and 9
(iv) 2050 is divisible by 2 and 5
(v) 406839 is divisible by 2,3 and 5
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