A, B and C received an amount of Rs 8400 and distributed among themselves in the ratio of 6 : 8 : 7 respectively. If they save in the ratio of 3 : 2 : 4 respectively and B saves Rs 400, then what is the ratio of the expenditures of A, B and C respectively?
1). 6:08:07
2). 8:06:07
3). 9:14:10
4). 12:07:09
7. If p:q = r:s = t:u = 2:3, then (mp+nr+ot): ( mq+ns+ou) is equal to :