एक कर्मचारी के वेतन में 200 रुपये से बढ़कर 240 रुपये की वृद्धि होती है। प्रतिशत वृद्धि क्या है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?