कौन सा लेखांकन अनुपात (accounting ratio) यह दर्शाता है कि कोई व्यवसाय अपनी परिचालन आय (operating income) का उपयोग करके बकाया ऋण पर अपने ब्याज दायित्वों को कितनी आसानी से पूरा कर सकता 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?