Quantitative Aptitude - Arithmetic Ability Questions

The average revenues of 7 consecutive years of a company is Rs 75 lakhs. If the average of first 4 years is Rs 70 lakhs and that of last 4 years is Rs 82 lakhs, what will be the revenue for the 4th year.

The average cost of 5 items in a shopping list is Rs 650. If one more item whose cost is Rs 1400 is added to the list what will be the new average (in Rs)?

What is the value of sin ­7π/4c?

The average of first 20 multiples of 12 is

How many three digit numbers are there in which all the digits are odd?

A sum fetched a total simple interest of Rs. 7728 at the rate of 7% per year in 8 years. What is the sum?

P and Q can complete a task in 50 and 20 days respectively. In how many days can they complete 70% of the task if they work together?

If a = √2 + 1 and b = √2 - 1, then the value of 1a+1+1b+1 will be