5 years ago in IB ACIO Grade - II 2013

The difference between the ages of two brothers is a prime number. Sum of their ages is also a prime number. If the elder brother is 28 years old, how many different values can the age of the younger brother take?

[A] 2
[B] 3
[C] 4
[D] 1
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Attempted 133
Correct 15
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Gopikrushna Nayak
Gopikrushna Nayak - 2 months ago

Gopikrushna Nayak is saying 3 is correct answer

Nazia Sayed
Nazia Sayed - 2 years ago

Nazia Sayed from Mumbai, India is saying 3 is correct answer

Tilkamanjhi Sarai
Tilkamanjhi Sarai - 2 years ago

Tilkamanjhi Sarai from Pune, India is saying 4 is correct answer

ashi yadav
ashi yadav - 2 years ago

ashi yadav from Auraiya, India is saying 3 is correct answer

AJAY TIWARI - 3 years ago

AJAY TIWARI from Patna, India is saying 3 is correct answer

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