Three friends J, K and L jog around a circular stadium and complete one round in 12, 18 and 20 seconds respectively. In how many minutes will all the three meet again at the starting point ?

The respective ratio of the present ages of a mother and daughter is 7 : 1. Four years ago the respective ratio of their ages was 19:1. What will be the mother’s age four years from now ?

The compound interest earned by Suresh on a certain amount at the end of two years at the rate of 8 p.c.p.a was Rs. 1,414.4. What was the total amount that Suresh got back at the end of two years in the form of principal plus interest earned?

If '/' means '+ '*'-' means '*' ; ' *' m e a n s ' / ' and '+' means '-'; then

1 5 - 8 * 6 / 1 2 + 4 =?

In a certain code language 'how many goals scored' is written as '5 3 9 7'; 'many more matches' is written as '9 8 2'; and 'he scored five' is written as '1 6 3' . How is 'goals' written in that code language?

 Mr Shamin's salary increases every year by 10% in June. If there is no other increase or reduction in the salary and his salary in June 201 I was Rs 22,385. what was his salary in June 2009?