308 GANITABABASANGRAHA . 8 8 84 125 218 (28) The oubio sums are * , the firs; terms are ' 84 ° 125 216 ° 343 1 31 58 the common differences are + , 8 18 ° 24' 14b 3 85 12 38 5, 12 .. the numbers of terms ares. में { 18 (30) मई 21 (31) 187 18 (32) (35) १, 5 (87) 3512 4108 (38) are the interchangeable first term and common difference 75 155488 when the sums are equal; and the equal sum. When the sums are 225 in 7852 , 2558 in the ratio of 1 to 2, co> and <are the first term and the common differ 75 3102976 ence; and the double sum is When the sums are in the proportion of 225 1848 4883 1 to 4, the first term and the common difference are > and : and the 45 75 . 7551488 haved sum is 225 341 (42) 2048 2048 1835 185 63 (44) 47 82 52 (48) 12 (49) 560 11 (50) 100 486 553 88B (51) 12000' 1440 ' 28520 99 35 1a (52) 21 352 704 37186 (53) The first terms are 176. ; ; are the sums 81 248 ' 729 6581 2280 13378
- OD
- the numbers of terms are 5; 4; 4,
8561 6561 (57 & 58) 1. (59) 1. (60) 1;1;1
