In January, Mambo donated 16th of his salary to a children’s home while Simba donated 15th of his salary to the same children’s home. Their total donation for January was Ksh 14820. In February, Mambo donated 18th of his salary to the children’s home while Simba donated 112th of his salary to the children’s home. Their total donation for February was Ksh 8675. Calculate Mambo’s monthly salary