Suhas decided to donate 15% of his salary. On the day of donation he changed his mind and donated Rs. 1,650 whichwas $11\over 15$th of what he had decided to donate earlier. How much is Suhas' salary ?
Work done by A in one day is four times the work done by B in one day, while the work done by B in one day is onethird of the work done by C in one day. C alone can complete the work in 16 days. In how many days can all the three together complete the work ?
A and B started a business with initial investments in the respective ratio of 5 : 7. If after one year their profits were in the ratio 1 : 2 and the period for A's investement was 7 months, B invested the money for