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Chandan Kumar Behera

· started a discussion

· 1 Months ago

mathmatic (Question:110273.0)

i do not understand

Question:

If M% of x is y and N% of y is x, then:

Options:
A) M + N = 100
B) MN = 10000
C) \(\cfrac{M}{N}=100\)
D) \(\cfrac{N}{M}=100\)
Solution:
Ans: (b) M% of x = y

or \(\cfrac{M}{100}\times x = y\)

or  \(\cfrac{x}{y}=\cfrac{100}{M}\)               ...... (i)

N% of y = x

or \(\cfrac{N}{100}\times y = x\)           

\(\cfrac{x}{y}= \cfrac{N}{100}\)                ......(ii)

from (i) and (ii)

\(\cfrac{100}{M}= \cfrac{N}{100}\)

MN = 10000

Knowledge Expert

· commented

· 1 Months ago

Dear student,
Please read the solution properly.
Keep learning,
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