Quantitative Aptitude - Arithmetic Ability Questions

In the given figure, from the point P two tangents PA and PB are drawn to a circle with centre Oand radius 5 cm. From the point O, OC and OD are drawn parallel to PA and PB respectively. If the length of the chord ABis 5 cm, then what is the value (in deg) of COD?

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?

What is the value of 1.23+0.83+0.73-2.0161.351.22+0.82+0.72-0.96-0.84-0.56 =

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

If 3.352 -­ (9.759 -­ x ) -­ 19.64 = 7.052, then what is the value of x?

What are the co-ordinates of the centroid of a triangle, whose vertices are A(1, -5), B(4, 0) and C(-2, 2)?

In how many years will Rs 25,000 yield Rs 8,275 as compound interest at 10% per annum compounded annually?

The ratio of incomes of C and D is 3 : 2. Ratio of income of D and E is 5 : 4. If one-third of C’s income is Rs 4000 more than the half of E’s income, then what is the D’s income (in Rs)?