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निम्नलिखित में से कौन सी विधि तीसरे वेरिएबल का उपयोग किए बिना दो वेरिएबल a और b को स्वैप करती है?

Which of the following methods swaps two variables a and b without using a third variable?

A
a = a * b, b = a / b, a = a / b
B
a = a + b, b = a - b, a = a - b
C
a = a * b, b = a + b, a = a - b
D
a = a - b, b = b + a, a = a * b
Explanation

Correct Answer: B) a = a + b, b = a - b, a = a - b

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