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Let the two numbers be 33a and 33b (33 is the H.C.F.) 33a +33b = 594 33(a + b) = 594 a+b = 594/33 a+b=18 Now, a and b must be co-primes Pairs = (1, 17), (5, 13), and (7, 11) Number of pairs are 3
A thief and a policeman are 80 km apart. The thief is traveling at a speed of 48 km/h, while the policeman is moving at 80 km/h. How far will the police...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
Two trains, A and B, are moving in opposite directions at speeds of 45 km/h and 60 km/h, respectively. The lengths of the trains are 120 meters and 150 ...
Ajay and Vishal left the place ‘X’ with different speeds which are in the ratio 3:2 respectively. Ajay left the place 42 seconds after Vishal. If af...
'A' and 'B' are running on a circular track of length 3600 metres. 'A' is running clockwise at 4 m/s while 'B' is running anti-clockwise at 6 m/s. Find ...
A and B are travelling towards each other with a speed of 15 km/hr and 25 km/hr. They started at same time and A covered 20 km less distance than B befo...
Three persons named P, Q, R started their journey at 9.30 AM, 11.30 AM, 2 PM respectively from A to B. The speed of Q is √625 m/sec. Q reached the des...
Speed of a car and a bus is 25 km/h and 15 km/h, respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time ...
Driving at 3/5 of my original speed I am 4 hours late for my office. What is my original time taken (km/h)?
‘A’ and ‘B’ started moving towards each other at same time with a speed of 20 km/hr and 15 km/hr, respectively. If the di...
