The price of a watch was increased by 20% to £198
What was the price before the increase?

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?