ABC26GN1267 · Simplification

Subject: General Aptitude · Chapter: Simplification · Exam: · Marks: · Difficulty:

If  a +  = 6, then  a + 4  = ? (R.R.B., 2008)  a  a 

(a)1154

(b)1158

(c)1160

(d)1164  1  4 1 

Answer

Answer (as printed): A

Explanation

 a +  = 6 ⇒  a +  = 6 2 = 36  a  a 1  1  ⇒ a 2 + 2 + 2 = 36 ⇒  a 2 + 2  = 34 a  a  2  1  ⇒  a 2 + 2  = (34)2  a  4 1  1 ⇒ a + + 2 = 1156 ⇒  a 4 + 4  = 1154. a 4  a  2  1  1

Explanation as extracted from the printed page; notation may be imperfect.

Open in whiteboard · Browse this chapter in the app