Quantitative Aptitude - Arithmetic Ability Questions

If selling price of 39 articles is equal to the cost price of 42 articles, then what will be the profit percentage?

When Bablu decreases the selling price of the shoes from Rs. 360 to Rs. 345, his loss increases by 4%. The cost price of the shoes is

PQ and RS are common tangents to two circles intersecting at A and B. AB, when produced both sides, meet the tangents PQ and RS at X and Y, respectively. If AB = 3 cm, XY = 5 cm, then PQ (in cm) will be

If x = 2 +√3, y = 2 – √3 and z = 1, then what is the value of (x/yz) + (y/xz) + (z/xy) + 2 [(1/x) + (1/y) + (1/z)]?

If cotA/√(1 + cot2A) = x, then the value of x is

What is the value of 4600+540+1280+250+36 ?

The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?

The areas of two similar triangles ΔXYZ and ΔPQR are 100 sq cms and 25 sq cms respectively. If PQ = 4 cm then what is the length of XY (in cm)?