Question
The perimeter of a rectangle is 320 meters, and the
difference between length and breadth is 80 meters. Find the area of the rectangle.Solution
2(L + B) = 320 So L+ B = 160 m ------(1) & L - B = 80 m ------(2) Adding both equations ; So 2L = 240 So L = 120 m & B = 40 m The area of rectangle = L × B = 120 × 40 = 4800 m 2 Alternate Method: (L + B) 2 - (L - B) 2 = 4LB So 160 2 - 80 2 = 4LB So (160 + 80) (160 - 80) = 4LB So LB = 240 `xx` 80/4 = 4800 m2
If Y * W % U * V % T & R @ S is true then how is W related to T?
Read the given information carefully and answer the question that follows.
‘B $ C’ means ‘B is the father of C’.
‘B & C’ means...
If U&V$Y@W%Z is true then how is U related to Z?
. ‘L&M’ means ‘L is husband of M’.
‘L%M’ means ‘L is wife of M’.
‘L@M’ means ‘L is father of M’.
‘L#M’ ...
If R ÷ S + T + U, which of the following is true?
If 'A % B' means 'A is wife of B', 'A # B' means 'A is brother of B', 'A @ B' means 'B is son of A', 'A & B' means 'A is daughter of B', 'A $ B' means '...
Answer the questions based on the information given below.
L + M means L is the wife of M.
L ? M means L is the son of M.
L > M m...
If (A @ B) means A is father of B, (A # B) means A is mother of B, (A & B) means A is brother of B, (A % B) means A is sister of B. In expression, ‘L ...
‘A × B’ means ‘A is the brother of B’.
‘A − B’ means ‘A is the mother of B’.
‘A ÷ B’ means ‘A is the father of B...
In a certain code language,
X + Y means 'X is the father of Y'
X - Y means 'X is the brother of Y',
X X Y means 'X is the sister of...
