# Aptitude & Logical Reasoning Quiz -21 #### Arun went for a movie nine days ago. He goes to watch movies only on Thursdays. What day of the week is today?

Explanation:
Clearly it can be understood from the question that 9 days ago was a Thursday
Number of odd days in 9 days = 2 (As 9-7 = 2, reduced perfect multiple of 7 from total days)
Hence today = (Thursday + 2 odd days) = Saturday

#### What is the smallest prime number?

Explanation:
Smallest prime number is 2.
0 and 1 are neither prime numbers nor composite numbers.

#### A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?

Explanation:
Since B and D are twins, so B = D.
Now, A = B + 3 and A = C - 3.
Thus, B + 3 = C - 3 D + 3 = C-3 C - D = 6.

#### Choose the word which is different from the rest.

Explanation:
All except Oil are products obtained from milk.

#### A and B complete a work in 6 days. A alone can do it in 10 days. Both together can do the work in how many days?

Explanation:
1/6 + 1/10 = 8/30 = 4/15
15/4 = 3.75 days