Math, asked by anshulbansal274, 1 year ago

plz answer this maths question

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priyanshu1812: bro i am having meal will answer in 5 minutes
anshulbansal274: ok bro no prob

Answers

Answered by KnowMore
4
Given, m = 7777....777 upto 99 digits  Similarly, n = 999.... 99 upto 77 digits  Here, in the number 7777....777 we had 99 digits and in the number 999....99 we had 77 digits.  Now, product of m × n = (7777....777) × (999....99)  Here, the sum of digits in product of (7777....777) × (999....99) will be equal to the sum of respective number of digits in the given number, i.e.,  sum of digits = 99 + 77 =  176  Now, if we multiply (7777....777) with (999....99) we will definitely get 176 digits in the product.So the answer is 891

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anshulbansal274: but the answer is not 176
anshulbansal274: there is no option for that
anshulbansal274: i dont think this method is correct
anshulbansal274: sorry but i couldn't understand how u got 891 ..
anshulbansal274: I understood that you have added their digits so we got 176 but how we get 891
anshulbansal274: can you explain me please
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