Frame a formula for ^{1}/5th of number x is 3 less than 20.
5x = 20 -3
5x = 3 - 20
^{x}/5 = 20 - 3
^{x}/5 = 3 - 20
A number decreased by 15 is 35.Derive the formula.
x - 15 = 35
15 - x = 35
35 - 15 = x
x -35 = 15
Obtain the formula fort the statement : when thrice a certain number is subtracted from 64, the result is 28.
2 - 3 x = 64
64 - 3 x = 28
28 = 3x + 64
None of these
The rule that the Perimeter (P ) of a rectangle is thrice the sum of its length (l ) and breadth (b ) is given by the formula _______.
P = 2 (l b )
P = ( l + b )
P = 3( l + b )
Frame a formula " The product of 3 consecutive numbers ( the smallest being x) is 310.
x × ( x + 1) × (x + 3) = 310
x × (x + 2) × (x + 4) = 310
x × (x + 1) × (x + 5) = 310
(x + 1) × (x + 3) × (x + 5) = 310
Find the value of 'f',f =uv/(u + v), if u = 10 cm & v = 5cm
10cm
3.3cm
50cm
-3.3cm
Find the value of 'f', f = uv/u +v if u = 12cm & v = 4cm
48cm
16cm
3cm
12cm
Given make x as the subject of the formula.
Find the value of f, f = uv/(u +v) if u = 7cm & v = 3 cm
2.1cm
21cm
7 cm
0
Given that 1/f = 1/v - 1/u, find v if u = 4 & f = 10
0.66
6.6
66
6.0