A shopkeeper bought 50 pangas and 30 jembes from a wholesaler a for sh 4260. had he bought half as many jembes and 5pangas less,he would have sh 1290 less. had the shopkeeper bought from wholesaler b,he would have paid 25% more for a pangas and 15 %less for a jembe. how much would he have saved if he had bought the 50 pangas and 30 jembes from wholesaler b