Q If the cost of 28 pen is 420 Then what is the cost of 20 pens

28x=420
x=420/28=15
Therefore one pen's cost is 15rs.
Hence 20 pen's cost is 300
11 years agoHelpfull: Yes(1) No(0)
cost of 28 pens=420
cost of one pen =420/28=15
so cost of 20 pens=20*15=300
11 years agoHelpfull: Yes(0) No(0)
300. cost of 28 pen is 420.. divide both side of equation by 7
this means cost of 4 pens is 60... multiply both sides by 5.. cost of 20 pens is 300
11 years agoHelpfull: Yes(0) No(0)
28 pen=420;
cost of 1 pen is = 420/28=15rs

cost of 20 pen is= 20*15=300;

answer is 300rs.
11 years agoHelpfull: Yes(0) No(0)
one pen value is 420/28=15.the 20 pens cost are 15*20=300
ans will be 300
11 years agoHelpfull: Yes(0) No(0)
420/28=x x=15 20*15=300
11 years agoHelpfull: Yes(0) No(0)
Cost of 28 pens=420
cost of 1pen= 420/28 = 15
cost of 20 pens= 20*15=300
so the ans is 300
11 years agoHelpfull: Yes(0) No(0)
(420/28)*20
11 years agoHelpfull: Yes(0) No(0)
It will cost 300.
one pen cost: 420/28=15 so,20 pen cost:15x20=300.
11 years agoHelpfull: Yes(0) No(0)
300.
420*20/28
11 years agoHelpfull: Yes(0) No(0)
cost of 28 pen is=420.
cost of 1 pen=420/28.
then cost of 20 pens=420*20/28.
300.
therefore cost of 20 pen's=300rs.
11 years agoHelpfull: Yes(0) No(0)

Q. If the cost of 28 pen is 420. Then what is the cost of 20 pens?