In an examination 70% students passed both in Mathematics and Physics, 85% passed in Mathematics and 80% passed in Physics. If 30 students have failed in both the subjects, then the total number of students who appeared in the examination is equal to
Correct Answer : B
A man driving his bike at 24 kmph reaches his office 5 minutes late. Had he driven 25% faster on an average he would have reached 4 minutes earlier than the scheduled time. How far is his office?
When price of wheat increased by 44%, a family reduced its consumption in such a way that the expenditure on wheat is only 20% more than before. If 60 kg of wheat was the previous consumption. Find the decrease in the consumption.
If the selling price of J 0 oranges is equal to the cost price of 14 oranges, which, in turn, is equal to one-third of the total discount offered upon 70 oranges, then find the profit loss percentage when the mark-up percentage is halved and the discount percentage is decreased by 5 percentage points.