Quantitative Aptitude - Arithmetic Ability Questions

Two smaller circles touch a large circle internally and pass through the center O of the larger circle. If the diameter of the bigger circle is 28 cm, thenwhat is the area of the bigger circle which is not enclosed by the two smaller circles (in sq.cm)?

What will be the value of xy, if x2+y2 = 45 and x-y=5 ?

What is the value of [1/(1 – tan θ)] – [1/(1 + tan θ)]?

A sum of money (P) doubles in 10 years. How much would it be in 20 years at the same rate of simple interest?

A train starts moving from a place P at 10:00 a.m. and arrives at another place Q at 5:30 p.m. on the same day. If the speed of the train is 50 km/hr, then what will be the distance (in km) covered by the train?

If Tan A = 15/8 and Tan B = 7/24, then Cos(A - B) = ?

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

If tanθ = 724 then find the value of p such that tanθ - secθsinθ = -p28