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Q.

45% of marks x is 405. What is the value of x?


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a

1250

b

1750

c

800

d

900 

answer is D.

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Detailed Solution

Given, 45% of marks x is 405.
We know that, a% of b = a100×b.
45% of marks x is 405.
45100×x = 405
x = 4050045
x = 900 marks
So, the value of x is 900.
Hence option 4 is correct.
 
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