Question

. The sum of all the integers which are less than 42 and prime to it is
a)126
c)226
d)252
The Cof the polynomials 1231.52 1843.3 and 14.6624 is
b)3​

Answer 1

Answer: The three consecutive integer numbers are 13, 14 and 15.

Explanation: Let x be the middle of the three consecutive numbers.

Then the lesser of the three is (x-1), and

    the greater of the three is (x+1).

So, our numbers are  (x-1),  x,  and  (x+1).

Their sum is

(x-1) + x + (x+1) = 3x,