A worker working under a bonus scheme saves 10 hours in a job for which the standard time is 60 hrs. A bonus of 10% of the hourly rate is payable when...
A,B,C,D,E,F and G are brothers. Two brothers had an argument and A said to B," You are as old as C was when I was twice as old as D, and will be as ol...
Appu and Gappu both start running around a circular racetrack in the same direction, each of them going at a constant speed. Appu is on a bicycle and ...
Raju takes 4 hours less to row down a 12 km stream than he takes to row up, for this 24 km round trip, if he doubles his rowing speed, he would take h...
A distance is covered at a certain speed in a certain time. If the triple of this distance is covered in four times the time, then what is the ratio o...
If Rajesh drives his bike at a speed of 40km/hr from his office, then he reaches him home 10 min late. If he drives at 60km/hr he reaches 10 min early...
The least common multiple of 2^6-1 and 2^9-1.
Find the pairs of natural numbers whose LCM is 78 and GCD is 13.