एक छात्र के अंक 70 से बढ़कर 84 हो जाते हैं। 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?