Question
50 men can complete a piece of work in 15 days. 10 men
started the same work and worked for 10 days, and then joined by ‘x’ more men such that the remaining work is completed in 10 days. Find the value of ‘x’.Solution
According to the question, 50 × 15 = 10 × 10 + (10 + x) × 10 Or, 10 + x = (750 – 100) ÷ 10 Or, 10 + x = 65 Or, x = 55
The ratio of roots of the equation mx2 + nx + n = 0 is α/ β = a/b, then find the value of `sqrt(a/b)+sqrt(b/a)+sqrt(n/m)`
I. 2p2 + 5p + 2 = 0Â Â Â Â Â Â Â Â II. 2q2 + 11 q + 14 = 0
For which value of m, there is no solution to the equation -
a – b = 5
ma – 4b = 1
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...
The slope of the equation 24x+ 8y =56 is
The ratio of roots of an equation
ax²+bx+b = 0 is p : q
Then find, √p/√q + √q/√p + √p/√q ?
Find the area between the lines 18x +12y = 108, 9x  + 6y  = 27, x - axis and y -axis.Â
I. 8/(√x) + 6/(√x) = √x
II. y ³- (14)7/2 /(√y) = 0
The equations 6x + my + 18 = 0 and 9x + 21y + 27 = 0 have a unique solution. Which of the following statements is definitely true?
If in two linear equations ax + by = c and dx + ey = f and a/d = b/e = c/f then, which of the following is true about the two equations?
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