Quantitative Aptitude - Arithmetic Ability Questions

An alloy contains copper and tin in the ratio 3 : 2. If 250 gm of copper is added to this alloy then the copper in it becomes double the quantity of tin in it. What is the amount (in gm) of tin in the alloy?

In the first 43 overs of a cricket match, the run rate was 5 runs/over. Calculate the required run rate in the remaining 7 overs to reach the target of 285 runs?

The cube of 997 is

If sinθ+ cosecθ=2, then the value of sin-7∅+cosec7∅ is

What is the value of tan 4π/3?

If P + 1P+2 = 1, then the value of P+23+1P+23-3 ?

If x + y = 3, then what is the value of x3 + y3 + 9xy?

The first and last terms of an arithmetic progression are 25 and ­52. What is the sum of the series if it has 12 terms?