What are the three odd prime numbers which equals 31.

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

3,11 and 17

2,18 and 11

10,10 and 11

None of the above

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Concept- We will first examine the definition of a prime number before listing all prime numbers below 31. Since the question specifies that a prime number must be an odd number, 2 is not an option. Next, we will look for the three numbers that will add up to 31.
Prime number: A number is considered to be a prime number if it has just one divisor other than itself.
Now, we will list all prime numbers that are smaller than 31 using the definition from above.

Now, we must choose any three of these integers, which gives us the sum of 31.
Examining reveals that

Therefore, the answer to this query is,

Therefore, option 1 is correct.

Watch 3-min video & get full concept clarity

hear from our champions

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

🔥 Start Your JEE/NEET Prep at Just ₹1999 / month - Limited Offer! Check Now!

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET