Math, asked by tanishq6321, 1 year ago

32 to 40 solve it.quick​

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Answered by Shanofi
1

Answer:

32. Cost of pen=x

Cost of pencil=y

Case I-

4x+4y=100

(Taking 4 common)

4(x+y)=100

x+y=100/4

x+y=25................i

Case II-

3x=y+15

3x-y=15.............ii

By elimination method

Adding i and ii

x+y=25

3x-y=15

------------------

4x=40

x=10

Substituting x=10 in (i)

x+y=25

10+y=25

y=15

10rs.= cost of pen box

15ts.=cost of pencil box


tanishq6321: solve all
tanishq6321: plz
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