Quantitative Aptitude - Arithmetic Ability Questions

84% of a number is 105. The number is :

Kiran swims in a 90 m long pool. He covers 360 m in two minutes by swimming from one end to the other and back 0 along the same straight path, twice. Find the average speed of Kiran.

Vishnu travelled equal distances at speeds of 10 kmph, 30 kmph and 8 kmph and took a total of 15.5 min to complete. Find the total distance he travelled, in km.

What least number must be subtracted from 210, so that the sum is completely divisible by 11?

If Sin x = 4/5, then Cosec x + Cot x =

What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?

cot2A + cos2A is equal to

Mayur can complete a work in 27 hours. If he is joined by Jayantika who is 100% more efficient, in what time will they together finish the work?