allery1 ਅਤੇ 20 ਵਿਚਕਾਰ ਕਿੰਨੀਆਂ ਅਭਾਜ ਸੰਖਿਆਵਾਂ ਹਨ?
A7
B8
C9
D6
Answer & Solution
Correct answer: B. 8
1 ਅਤੇ 20 ਦੇ ਵਿਚਕਾਰ ਪ੍ਰਮੁੱਖ ਸੰਖਿਆਵਾਂ 2, 3, 5, 7, 11, 13, 17, ਅਤੇ 19 ਹਨ। ਕੁੱਲ ਗਿਣਤੀ = 8।
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