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Question

If a number, when divided by 4, is reduced by 21, the number is :


Options:
A .  18
B .  20
C .  28
D .  38
Answer: Option C

Let the number be `x`. Then,

`x/4` = `x - 21`  `hArr`  `x` = `4x` - 84   `hArr`  `3x` =  84    `hArr`   `x` = 28.



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