Question

Ravi went to shop to buy some stationary .he bought 4 blue pens, 3black pens,and 2 red pens. each pen cost 7 rupees .how much did Ravi pay to shop keeper? ​

Answer 1

Answer:

Given total cost of 5 pens and 10 pencil = Rs 30

5 pens + 10 pencils = 30

pens + 2 pencils = 1

also given pen cost 3 more than a pencil

i.e, pen = 3 + pencil.

pen - pencil = 3

pens + 2 pencils = 6

_______________

-3 pencils = -3

pencils = 1

pen - 1 = 3

pen = 4

cost of pencils = 1 cost of pen = 4

Answer 2

Total Number of pens × Total price = Final Amount

$4 + 3 + 2 = 9$

Price of 1 pen= 7rs.

Total price of 9 pens=

$9 \times 7 = 63$

First, we need to calculate the total number of items purchased by Ravi. After that, a pen costs ₹7.

To calculate the total number of items, we need to multiply the total number of items purchased by him and the cost of one pen.

Total number of pens bought by him = 4 blue pens

3 black pens

2 red pens

= 4 + 3 + 2

= 9 pens

Cost of one pen = ₹7

Total cost of pens = total number of pens × cost of one pen

= 9×7

= 63 ₹

Ravi paid the total cost of the pen ₹ 63 to the shopkeeper.

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