CHAPTER -RULE-CF-THREE. 91 smaller number (of different quantities, after these are also similarly thrown together and multiplied); but in the matter of the buying and selling of living animals (the transposition is to take place) only (in relation to the numbers representing) them. Examples in illustration thereof. 33. At the rate of 2, 3 and 4 per cent. (per month), 50, 60 and 70 Puranas were (respectively) put to interest by a person desiring profit. How much interest does he obtain in ten months? 34. The interest on 80 gold coins for of a month is 13. How much (will it be) on 90 gold coins for 5 months? 35. He who obtains 20 gems in return for 100 gold pieces of 16. varnas-what (will he obtain) in return for 288 gold pieces of 10 varnas? 36. A man, by carrying 9 manis of wheat over 3 yojanas, obtained 60 panas. How much (would he obtain) by carrying one kumbha along with one vaha (thereof) over 10 yojanas? Examples on barter. 37. A man obtains 3 karsas of musk for 10 gold coins and 2 karsas of camphor for 8 gold coins. How many (karsas of camphor does he obtain) in return for 300 karsas of musk? 38. In return for 8 (masas in weight of silver), a man obtains 60 jack fruits; and in return for 10 māsas (in weight of silver he obtains) 80 pomegranates. How many pomegranates (does he obtain) in return for 900 jack fruits ? Examples of (problems bearing on) the buying and selling of animals. 39. Twenty horses, (each) of 16 years (of age), are worth 100,000 gold coins. O leading arithmetician, say how much 70 horses, (each) of 10 years (of age), will be (worth) at this (rate). 40. Three hundred gold coins form the price of 9 damsels, (each) of 10 years (of age). What is the price of 36 damsels, (each) of 16 years (of age) ?
