Q8 pls solve fast

Q8 pls solve fast 10. Tb.• ages get anaining 'he agc of 2S years respectively. If 'he compound interes' second year amounted to 4.950. find sum invested. 7. A sum Of money is invested at annum compounded halt•yearly. If the difference amounts at the end of 6 months and 12 is 189. find the sum of money invested. 8. Rohit borrows e 86.000 from Arun for years at 5% per annum simple interest. He immediately lends out this money to Akshay 5% compound interest compounded annually for the same period. Calculate Rohit's profit in the transaction at the end of two years. 9. The simple interest on a certain sum of money for 3 years at 5% per annum is 1,2M). find the amount due and the compound interest on this sum of money at the same rate and after 2 years, interest is reckoned annually. 10. Nikita invests 6.000 for two years at a certain rate of interest compounded annually. At the end of first year it amounts to 6.720. Calculate :