A person swims a distance of 28 km. in the direction of stream in 5 hours and a distance of 13 km. in 5 hours against the stream. What is the velocity of the stream?

If  tan²θ +cot²θ  = 2, then what is the value of  2^{secθ cosecθ}?

During a month-long annual sale, a shopkeeper sells his goods at a discount of 50%. But in the last week, he offers an additional discount of 40%. If the original price of a shirt is ₹ x, then the price (in rupees) during the last week of the sale will be 

The expenditure on the cost of living of a man and his family is 60% of his salary. He gets two increments of 30% and 60% in his salary. If his saving increases by 250% of his initial saving, then the new cost of living expenditure is what percentage (rounded off to the nearest integer) of the increased salary?

Direction : What should come in place of the question (?) in the following question.

$${34×4-12×8\over \ {6^2}+{\sqrt{196}}+(11)^2}=?$$

In a division sum, the divisor is 3 times the quotient and 6 times the remainder. If the remainder is 2, then the dividend is: