Question

Find the greatest no. of 7 digits with is 3/5 exactly divisible by 12, 15 and 21​

Answer 1

Answer:

9999780 IS THE ANSWER

STEP BY STEP EXPLANATION-

FIRST WE SHOULD HAVE TO FIND THE LCM OF 12,15 AND 21.

LCM-. 3 12 15 21

4 5 7

LCM 3×4×5×7

= 420

AND NOW DIVIDE THE GREATEST NUMBER OF SEVEN DIGITS FROM THE LCM OF 12,15 AND 21.

9999999

---------------. = 23809.5214

420

NOW MULTIPLY THE ANSWER WITH LCM

23809×420

=9999780 Ans

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