Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The
marks obtained by them are
1). 40 and 31
2). 72 and 63
3). 42 and 33
4). 68 and 59
4. If 15% of 30% of 50% of a number is 90, then what is the number?