Math, asked by kriya1454, 1 year ago

A number consisting of two digits is equal to seven times the sum of its digits.When 27 is subtracted from the number ,the digit interchange their places. Find the number

yo167b: from whic chapter is this question?

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Answered by ashish9810618058

0

the sum of deviation of n observations from 25 is 25 and sum of deviation of the same n observation from 35 is -25 find the mean of the observations

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