If x ∶ y = 3 ∶ 2 and x + y = 90, then the value (x – y) is :
A) 12 B) 18 C) 16 D) 10 Given data x : y = 3 : 2 x + y = 90 Detailed solving: Let assume the value as 3a and 2a x + y = 3a + 2a ⇒ 3a + 2a = 90 ⇒ 5a = 90 ⇒ a = 18 ⇒ x … Read more
Information, Facts Provided
A) 12 B) 18 C) 16 D) 10 Given data x : y = 3 : 2 x + y = 90 Detailed solving: Let assume the value as 3a and 2a x + y = 3a + 2a ⇒ 3a + 2a = 90 ⇒ 5a = 90 ⇒ a = 18 ⇒ x … Read more
A) 1558 B) 1458 C) 1585 D) 1485 Detailed solution : {The above question had appeared in the CGL Mains 2020 } Let the greatest number = x Let the smallest number = y x = 7y + 50 x – 7y = 50 x-y = 1280 By solving the above equations, we get -6y … Read more