A number, on subtracting 15 from it reduces to its 80%. What is 40% of the number ?

80% of a number added to 80 gives the result as the number itself, then the number is :

In an examination, 65% of the students passed in Mathematics, 48% passed in Physics and 30% passed in both. How much per…

When 75 added to 75% of a number, the answer is the number. Find 40% of that number.

In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In scho…

If radius of a circle is increased by 5%, then the increase in it's area is :

The price of the sugar rise by 25%. If a family wants to keep their expenses on sugar the same as earlier, the family wi…

A big cube is formed by rearranging the 160 coloured and 56 non-coloured similar cubes in such a way that the expouser o…