12 yr ago the ratio between the ages of A and B was 3 :4respectively. The present age of A is 3$3 \over 4$ times of C's present age. If C's present age is 10 yr, then what is B's present age? (in years)
M, N, O and P divided Rs.44352 among themselves. M took $3 \over 8$th of the money, N took $1 \over 6$th of the remaining amount and rest was divided among O and P in the ratio of 3 : 4 respectively. How much did O get as his share ?