Question

form the equation and solve

A-- the cost of 5 pens is rupees 90 what is the cost of 1 pen?
B-- 3/4 of a number is 15 . what is the number?
C-- i am thinking of a number . if 60 is subtracted from it result is 4. find the number.


please guys i need it fast

Answer 1

A.5 pens = 90
1pen = 90/5=18
B.3/4=15
1/4=15/3=5
4/4=1=5×4=20
C.I dont know