Quantitative Aptitude - Arithmetic Ability Questions

X and Y are two alloys which are prepared by mixing zinc and aluminium in the ratio of 1 : 4 and 11 : 8 respectively. If equal quantities of alloys are melted to form a third alloy Z then what is the ratio of zinc and aluminium in alloy Z?

A man buys 10 oranges for Rs. 3 and sells 8 for Rs. 3. Calculate his gain percent.

Select the odd word/letters/number/number pair from the given alternatives.

What is the area (in sq cm) of a rectangle if its diagonal is 26 cm and one of its sides is 10 cm?

Reflection of the point (3,-6) in the y-axis is

What is the value of [2 cot × (p – A)/2]/[1 + tan2× (2p – A)/2]?

Slit 69 into three parts such that they are in A.P. and the product of their smaller parts is 483.

A person borrows some money for 8 years at a rate of simple interest. If the ratio of principal and total interest is 5 : 8, then what is the rate ( inpercentage) of interest?