Aptitude Discussion

Q. |
Students of a class are made to stand in rows. If 4 students are extra in each row, there would be 2 rows less. If 4 students are less in each row, there would be 4 more rows. The number of students in the class is: |

✖ A. |
90 |

✖ B. |
94 |

✖ C. |
92 |

✔ D. |
96 |

**Solution:**

Option(**D**) is correct

Let number of rows be $x$ and number of students in each row be $n$.

Then, total number of students $= x\times n$

Again,

$(n+4)(x−2)=(x−4)(n−4)=xn$

$⇒ n=12$ and $x=8$

Number of students $=12\times 8=96$

**Aayan**

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**Rahul Gautam**

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you can eliminate from the options. First to aren't divisible by $4$. Third isnt divisble by 8. So answer is d.

**Aditi**

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in quest it is mentioned that "If 4 students are less in each row, there would be 4 more rows

row = x,students in each row = n

therefore, eqn should be (n-4)(x+4) = xn

answer is 192 they have done with wrong equations.