Answers

2016-02-05T08:56:02+05:30
Sum of first 3 primes :
2+3+5=10.
5th prime=11
11-10=1
∴1 is the number which when added to the sum of first 3 primes gives the fifth prime.

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1 5 1
2016-02-05T15:06:45+05:30
Sum of first 3 prime nos. 1+2+3=6
5th prime no.=7
no to be added=7-6=1
1 should be added
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