Q.

If the cost of 25 packets of 12 pencils each is Rs. 750 then cost of 30 packets of 8 pencil each is

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a

Rs.720

b

Rs.640

c

Rs.680

d

Rs. 600

answer is A.

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Detailed Solution

2530×128=750x

56×128=750x

54=750x

5x=750×4

x=750×45  x=600

x=600

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