Quantitative Aptitude - Arithmetic Ability Questions

The radius of base of a solid cylinder is 7 cm and its height is 21 cm. It is melted and converted into small bullets. Each bullet is of same size. Each bullet consisted of two parts viz. a cylinder and a hemisphere on one of its base. The total height of bullet is 3.5 cm and radius of base is 2.1 cm. Approximately how many complete bullets can be obtained?

A can do a work in 24 days and B in 40 days. If they work on it together for 10 days, then what fraction of work is left?

Both A and B together can complete a work in 20 days and B alone can complete the same work in 36 days. In how many days will A alone complete the work?

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

If the sum of the digits of any integer between 100 and 1000 is subtracted from the same integer , the resulting number is always divisibleby

If Sin θ = 12/13, then what is the value of Cot θ?

At a telephone exchange, three phones ring at intervals of 20 sec, 24 sec and 30 seconds. If they ring together at 11 : 25 a.m, when will they next ring together?

In the following question, select the odd letter/letters from the given alternatives.