Krishna Kishore took one number. If he subtracts 7 from the 5/2th valu

1.	Krishna Kishore took one number. If he subtracts 7 from the 5/2th value of the number, he gets 11/2 as result then the number is ………………….A) 9 B) 10 C) 5 D) 6
Answer» Correct option is C) 5 Correct option is (C) 5 Let the number be x. \(\therefore\) \(\frac52x-7=\frac{11}2\) \(\Rightarrow\) \(\frac52x=\frac{11}2+7=\frac{11+14}2=\frac{25}2\) \(\Rightarrow\) \(x=\frac{25}2\times\frac25=5.\)

Krishna Kishore took one number. If he subtracts 7 from the 5/2th value of the number, he gets 11/2 as result then the number is ………………….A) 9 B) 10 C) 5 D) 6

Answer»

Correct option is C) 5

Correct option is (C) 5

Let the number be x.

\(\therefore\) \(\frac52x-7=\frac{11}2\)

\(\Rightarrow\) \(\frac52x=\frac{11}2+7=\frac{11+14}2=\frac{25}2\)

\(\Rightarrow\) \(x=\frac{25}2\times\frac25=5.\)