Question
The length of a rectangular field is 40 m and its
breadth is 25 m. Find the area and the cost of fencing it all around at Rs 50 per metre.Solution
Area = length × breadth = 40 × 25 = 1000 m² Perimeter = 2 × (40 + 25) = 2 × 65 = 130 m Cost of fencing = 130 × 50 = Rs 6500 Answer: Area = 1000 m², fencing cost = Rs 6500.
More Mensuration Questions
If √d + (1/√d) = 6, then find the value of d + (1/d).
If 'x' = √10, then find the value of (x - 1)² + (x + 1)²
The coefficient of ‘b2’ in (3a + b)3 is
- If x 4 Â + 1/x 4 Â = 194, x > 0, then find the value of x + 1/x + 2.
If (a - b - c) = 6, and (ab - bc + ca) = 117, then find the value of (a 2 Â + b 2 Â + c 2 )
Evaluate (998)3 without multiplying directly.
If a = 701, b= 703 and c= 706, then find the value of a³ + b³ +c³ –3abc?
If (9x + 4y) = 808 and 2x:5y = 18:25, then find the value of (2x² + 3y²).
Find the number of zeroes in 24 × 50 × 64 × 15.
Relevant for Exams:
