Akanksha invests Rs. x in insurance which gives her returns at 21% annually and Rs. y in mutual funds which gives her returns of 10% compounded half yearly. If Akanksha gets the same returns from both the investments after 1 year, then what is the square root of the ratio of x to y? 8) Two persons drive towards each other from two places which are 56 km apart. The speed of first person is 12 km/h and speed of the other is 14km/h. After how long will they be 4 km apart if they start driving together? 9) 45 men can complete a work in 16 days. Six days after they started working. 30 more men joined them. How many days will they now take to complete the remaining work?