The efficiency of P is twice that of Q,whereas efficiency of P and Q together is three times that of R.If P,Q and R work together on a job,in what ratio should they share their earnings?
For which value of k does the pair of equations x²-y²=0 and (x-k)²+y²=1 yield a unique positive solution of x?√
Two persons A and B start walking simultanoeusly from two places c km apart and walk in the same direction.If A travels at the rate of p km/hr and B travels at the rate of q km/hr ,then A has travelled before he overtakes B at a distance of
A car travels the first one-third of a distance with a speed of 10km/hr,the next one-third distancewith a speed of 20km/hr and the last one-third distance with a speed of 60km/hr.The average speed of the car for the whole journey is
A man rows 32km downstream and 14km upstream and he takes 6 hours to cover each distance.What is the speed of current?
In how much time the SI on a principal amount be 0.125 times principal amount at 10% p.a?