Question

find the sum of 15% of 75 and 5% of 75. its equal to 20% of 75 ?​

Answer 1

Answer:

15%×75+5%×75=20%×75

15/100×75+5/100×75=20/100×75

45/4+15/4=15

45+15÷4=15

60/4=15

15=15