Subject: General Aptitude · Chapter: Number System · Exam: · Marks: · Difficulty:
Which of the following numbers are completely divisible by 7? I. 195195 II. 181181 III. 120120 IV. 891891
(a)Only I and II
(b)Only II and III
(c)Only I and IV
(d)Only II and IV
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
I. We have(195 – 195) 0 \ 195195 is divisible by 7. II. We have (181 – 181) = 0 \ 181181 is divisible by 7. III. We have (120 – 120) = 0 \ 120120 is divisible by 7. IV. We have (891 – 891) = 0 \ 891891 is divisible by 7. Hence, all are divisible by 7.
Explanation as extracted from the printed page; notation may be imperfect.