Question
On Monday, if difference between the time taken by the
boat to go upstream and the time taken by the boat to go downstream is 15 hours, find the total time taken by the boat to go upstream and downstream. Study the following table carefully and answer the given questions: Distance Upstream = Distance Downstream Total time taken = Downstream time + Upstream timeSolution
Let the speed of boat be x km/hr. According to question, => [400/(x-3)] - [400/(x+3)] = 15 => x = 13 km/hr Total time taken = (400/10) + (400/16) = 65 hrs
The slope of the equation 24x+ 8y =56 is
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...
If (5√P - 7√Q) = 5, [1.5P = 4Q-(R/3)+9] and (√P/√Q) = 1.6, then find out the value of ‘R’.
If, x - y radic; 3 = 23 and radic; 3x + y = 35
Find the angle between both the lines when they intersect each other.
...I. p2 – 5p + 6 = 0
II. 36q2 = 81
...I. p² - 365 = 364
II. q - √ 529 = √ 169
Find the value of 'a' and 'b' which satisfy the following equations:
9a + 7b = 30
4a - 5b = 62
The ratio of roots of an equation
ax²+bx+b = 0 is p : q
Then find, √p/√q + √q/√p + √p/√q ?
If x - √3 y = 8 Find the slope in angle?
I. 8/(√x) + 6/(√x) = √x
II. y ³- (14)7/2 /(√y) = 0
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