Monthly income of ‘C’ = 40000/4 = Rs. 10000 Let the monthly income of ‘A’ be Rs. x Therefore, monthly income of ‘B’ = Rs. (30000 – x) According to the question, 0.70x + 0.20(30000 – x) = 18000 Or, 0.5x = 12000 x = 24000 Or, savings of ‘A’ = 0.7x = Rs. 16800
168, 164, 155, 139, ?, 78
324Â Â Â Â Â Â Â Â 972Â Â Â Â Â Â Â Â 486Â Â Â Â Â Â Â Â 1458Â Â Â Â Â Â 729Â Â Â Â Â Â Â Â ?
...32   48   96   ?   720   2520
8 12 30 105 ? 2598.75
...18, 54, ? , 1890, 17010, 187110
660, 653, 639, 618, 590, ?
16, 16, 32, 96, ?, 1920
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
64, 256, 128, 512, 256, ?
45, 58, 84, 123, ?, 240Â
