Question
The difference between the length and breadth of a
rectangle is 19 m. If its perimeter is 198 m, then its area isSolution
Using formula, Perimeter = 2(l + b) Let the breadth be ‘x’ metre Length = (19 + x) metre ⇒ 2(x + 19 + x) = 198 ⇒ 4x = 198 – 38 ⇒ x = 160/4 = 40 metre Therefore, length = 40 + 19 = 59 metre Therefore, required area = 59 x 40 = 2360 m²
3 pens + 5 pencils = ₹49
4 pens + 3 pencils = ₹47
Find cost of one pen.
The length of a line segment A, B is 10 units. The coordinates of point A are(2,3) and the value of ordinate of point B is 5. Then find the value of abs...
Find the value of 'a' and 'b' which satisfy the following equations:
9a + 7b = 30
4a - 5b = 62
If 2x + 3y = 27 and 3x - y = 13, find (x + y).
If 0.4x + 0.6y = 26 and x - y = 10, find x.
Find the area between the lines 18x +12y = 108, 9x + 6y = 27, x - axis and y -axis.
If (5√P - 7√Q) = 5, [1.5P = 4Q-(R/3)+9] and (√P/√Q) = 1.6, then find out the value of ‘R’.
Solve: (x/3) + (x/5) = 16
For which value of m, there is no solution to the equation -
a – b = 5
ma – 4b = 1
I. p² - 365 = 364
II. q - √ 529 = √ 169
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