ravi bought 3 dozen pens in which 14 was ball and remaining was ink pens the shopkeeper charged rs 7 for each ball pen and rs 13 for ink pen write the expression to find the money paid by ravi for buying pens in terms of rs by using signs and brackets .
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Answered by
1
Answer:
ball pen: rs.98
ink pen: rs289
Step-by-step explanation:
13 dozen=36
out of 36 14ball pen=14*7 =98
remaining 22 pens were ink =22*13=286
Answered by
1
384
Step-by-step explanation:
total number of pens =( 3 dozen ) =36
number of ball pens = 14
number of ink pen = 36-14 = 22
cost of ball pens = 14×7= 198
cost of ink pens = 13×22 = 286
total cost of pens =198+268 =384
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