In a row of boys, A is 7th from the left and B is 12th from the right. If they interchange their positions A becomes 22nd from the left. How many total boys are there in a row ?लड़कों की एक पंक्ति में, A बायीं तरफ से 7वें तथा B दायीं तरफ से 12वें स्थान पर है, यदि उनके स्थानों में परस्पर परिवर्तन किया जाता है, तो A का बायीं तरफ से 22वाँ स्थान हो जाता है, तो पंक्ति में कुल लड़कों की संख्या है :
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Correct answer: C. 33
Explanation
After the interchange A stands where B stood, so B's original position is 22nd from the left. B is also 12th from the right. Total = 22 + 12 - 1 = 33. Hence the answer is 33.अदला-बदली के बाद A उस स्थान पर आ जाता है जहाँ पहले B था, अतः B का मूल स्थान बायीं ओर से 22वाँ है। B दायीं ओर से 12वाँ भी है। कुल लड़के = 22 + 12 - 1 = 33। अतः उत्तर 33 है।More Reasoning & Mental Ability questions
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