Question
There are three numbers such that when the average of
any of the two numbers is added with the third number, sum obtained will be 120, 122 and 130. Find the average of all three numbers.Solution
Let the three numbers be a, b and c respectively. According to question; (a + b + 2c) = 120 × 2 = 240……………..(1) (a + 2b + c) = 122 × 2 = 244……………..(2) (2a + b + c) = 130 × 2 = 260……………..(3) From equation (1), (2) and (3) 4 × (a + b + c) = 744 a + b + c = 186 (a + b + c)/3 = 62
If ‘L’ is the brother of ‘O’, ‘O’ is the son of ‘K’, and ‘M’ is the father of ‘L’, then how is ‘K’ related to ‘L’?
...If ‘B × C # D @ E * F @ G’ is true then how is C related to G?
- Mohan is son of Akash. Manchun is father-in-law of Akash. Kamla is daughter-in-law of Paravati who is married to grandfather of Mohan. How is Kamla related...
If 'A - B' means 'A is the mother of B', 'A @ B' means 'A is the sister of B', 'A # B' means 'A is the husband of B', 'A & B' means 'A is the son of B',...
- A, B and C are siblings. B’s mother is daughter of K. K is wife of M, whose son-in-law is brother of L. How is C’s mother related to L?
E + F means E is daughter of F. E - F means E is husband of F. E × F means E is sister of F. E ÷ F means F is father of E. If L + M – N + O × P –...
How is ‘B’ related to ‘E'?
How manyfemale membersare there in the family?
In a family of six persons, D is mother of L. M is son of E and L is brother of M. K is sister in law of G, who is married to M. There are three married...
‘A + B’ means 'A is mother of B’, ‘A – B’ means 'A is brother of B', ‘A ÷ B’ means 'A is father of B’, ‘A × B’ means 'A is h...
