Quantitative Aptitude - Arithmetic Ability Questions

Ramu can row 9 kmph in still water. It takes him twice as long to row up as to row down. Find the rate of stream.

What is the value of [(cos 7A + cos 5A)÷(sin 7A – sin 5A)]?

If (333 + 333 + 333) (233 + 233) = 6x, then what is the value of x?

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

Select the odd word/letters/number/number pair from the given alternatives.

One-third of Poojitha's age three years ago plus one-half of her age two years from now is twenty years. How old is she now?

Rizvan walks at 15 km/hr and Ruchitha cycles at 20 km/hr towards each other. What was the distance between them when they started if they meet after 42 minutes?

The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)