A number is greater than 58 times its reciprocal by 3/4. What is the number?

If a - b = 1 and ab = 6, then what is the value of a3- b3?

If (-1/2) * ( x - 5) + 3 = -5/2, then what is the value of x?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 1,800, and Rs 1,926 respectively, what is the rate of interest?

A spaceship travels at 1,260 km/h. How many metres does it travel in 1/10 th of a second?

A student has to secure 40% marks to pass. He gets 67 and fails by 13 marks. What is the maximum marks?

A trader buys 500 kgs of cotton for Rs 9,000. 10% of this cotton is spoiled due to rain. At what rate (Rs/Kg) should he sell the rest to earn 10% profit?

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?