Quantitative Aptitude - Arithmetic Ability Questions

Simple interest on a sum of Rs 3300 for 5 years is Rs 1980. What is the annual rate (in percentage) of interest?

Find the curved surface area (in cm2) of a hemisphere of diameter 7 cm.

Three cubes of iron whose edges are 6cm, 8cm and 10cm respectively are melted and formed into a single cube. The edge of the new cube formed is

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

What is the value of 643 × 121289 - 169 ?

Geetha weighs 11.235 kg. Her sister weighs 1.4 times her weight. Find their combined weight?

If a number is reduced by 35%, then it becomes 416. By how much percent should the number be increased so that it become 876.8?

If 49 is subtracted from the square of a number, then the result obtained is 576. What is the number?