Question

A number when subtracted by 1/7 th of itself gives the same value as the sum of all the angles of a triangle. What is the number?
A) 420
B) 210
C) 70
D) 35

Answer 1

Your Answer ::


Let the number be x .

1 /7 of number = 1 /7 × x
= x/7

Sum of all the angles of a triangle = 180 .



According To The Question.

x - x /7 = 180
7x - x / 7 = 180
7x - x = 180 × 7
7x - x = 1260
6x = 1260
x = 1260 /6
x = 210

So , your answer is option number (B) 210 .

Hope It Helps! !!

Answer 2

Hi friend
The correct option is B


I hope it will help
✌️☺️