allery2, 3, 5, ?, 11, 13 ਸੂਚੀ ਵਿੱਚ ਇੱਕ ਪ੍ਰਮੁੱਖ ਅੱਖਰ ਗੁੰਮ ਹੈ। ਕਿਹੜਾ?
A6
B8
C7
D9
Answer & Solution
Correct answer: C. 7
5 ਅਤੇ 11 ਵਿਚਕਾਰ ਪ੍ਰਧਾਨ ਸੰਖਿਆ 7 ਹੈ, ਕਿਉਂਕਿ 6, 8 ਅਤੇ 9 ਸੰਯੁਕਤ ਹਨ।
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