Question
The speed of boat downstream and upstream is 26 km/hr
and 22 km/hr respectively. Time taken to travel a distance of (p + 45) km downstream and (q + 30) km upstream is 13 hours, and time taken to travel (p + 95) km upstream and (q + 55) km downstream is 19 hours. Find the difference between the value of p and value of q.Solution
According to question, (p+45)/26+(q+30)/22=13 (2p+90+3q+90)/52=13 2p+3q=676–180=496 … (iii) Also, (p+95)/22+(q+55)/26=19 (3p+285+2q+110)/52=19 3p+2q=988–395=593 … (iv) Solving equation (iii) and (iv), we get, p=113 and q=90 Therefore, required difference = 113 – 90 = 23
The national song ‘Vande Mataram’ was composed by Bankim Chandra Chatterjee i n which language?
Which of the following seas has highest salinity in the world?
The missing term of the series isÂ
A2, C5, E8, G11, ____________
Which amongst the following statements is/are not correct ?
1.     Isthmus is a narrow strip of land joining two landmasses.
2. �...
If * is an operation such that a * b = 3a – 4b. find the value of 3*4
Penicillium is a _____________.
The six freedoms in Article 19 can be curtailed by:
New education policy. 2020 is goal to achieve 100% gross enrolment Ratio (GER) in school Education by the year ________.
If the square root of the product of two numbers equals their average, then
