एक चालक को 6 V की बैटरी से जोड़ा जाता है। माना चालक के सिरों पर विभवांतर V1 है। जब 9 V की बैटरी को जोड़ा जाता है, तो विभवांतर V2 हो जाता है। अनुपात V1 / V2 का मान क्या है?

In a camp, food supplies are available for 21 students for 30 days. If the number of students in the camp is increased to 70, in how many days will the same food supplies last?

Three individuals, X, Y, and Z, are co-sureties for a business loan of ₹1,20,000 granted to a firm. They have agreed to different maximum liability limits: X up to ₹20,000, Y up to ₹40,000, and Z up to ₹80,000. The firm defaults on the entire amount of ₹1,20,000. Calculate the amount each co-surety is liable to pay according to Section 147 of the Indian Contract Act.