Quantitative Aptitude - Arithmetic Ability Questions

Which one among the following does not belong to the group?

If 170% of a number added to 66, then the result becomes equal to twice of the number. What is the number?

If the simple interest on Rs. 1 for 1 month is 1 paisa, then the rate percent per annum will be

A sum of Rs 8000 is divided into two parts. The simple interest on first part at the rate of 21% per annum is equal to the simple interest on second part at the rate of 35% per annum. What is the interest (in Rs) of each part?

X can complete a task in 8 days, whereas Y can complete the same task in 10 days. If they work together, in how many days will the task be completed?

The value of (sec245 - cot245) - (sin230 + sin260) is

What is the value of [(tan 5θ + tan 3θ)/4 cos 4θ (tan 5θ – tan 3θ)]?

ΔABC is right angled at B. BD is the altitude. AD is 18 cm and DC is 50 cm. Find length of BD?