Quantitative Aptitude - Arithmetic Ability Questions

The flight fare between two cities is increased in the ratio 11:13. What is the increase (in Rs) in the fare, if the original fare was Rs 12100?

If πsinθ= 1, πcosθ= 1, then (3tan 23θ+1) is

If a + b = 3 and ab = -4, then what is the value of a3 + b3?

What is the unit digit of 15+25+35+...+205 ?

If P = 7 + 4√3 and PQ = 1, then what is the value of 1/P2 + 1/Q2?

A truck moves at the speed of 90 km/hr after repairing and moves at the speed of 80 km/hr before repairing. It covers x distance in 8 hours after repairing. How much time (in hours) will it take to cover 4x distance before repairing?

The largest 5 digit number exactly divisible by 89 is:

If Sec θ = 5/3, then what is the value of Cosec θ?