Part C - Elementary Mathematics
What time (in seconds) is required for a 238 m long train to cross a 702 m long tunnel, if the train travels at a speed of 36 km/h?
How many kilograms of sugar at โน3.80 per kg should be mixed with 60 kgs of sugar at โน4.60 per kg, so that by selling the mixture at โน5 per kg, there may be gain of 25%?
To do a certain work, Q and R work on alternate days, with Q beginning the work on the first day. Q can finish the work alone in 56 days. If the work gets completed in 37.5 days, then R alone can finish half of the same work in:
The population of a district is 340000, out of which 217000 are males. 11% of the population is literate. If 11% males are literate, then what percentage of females are literate?
The average weight of Chetan, Vipul and Mohan is 46 kg. If the average weight of Chetan and Vipul be 40 kg and that of Vipul and Mohan be 44 kg, then the weight of Vipul (in kg) is: