Two students appeared for an examination. One of them secured 20 marks more than the other and his marks were 55% of the sum of their marks. The
marks obtained by them are
1). 92 and 72
2). 83 and 63
3). 110 and 90
4). 64 and 44
1. 18.5% of 320 + 7.4% of 450 = ?
4. 0.15% of $33\frac{1}{3}$% of Rs 1OOOO is :