The average weight of 8 men is increased by 1.5 kg when one of the men who weigh 65 kg is replaced by a new man. What is the weight of new man?
Find the value of k for which the given simultaneous equations have infinitely many solution: kx+3y =8; 6x+9y=24.
Linear and Non-linear Equations In the month of February, Meeta paid Rs. 620 for 5 kg oil and 2 kg “ghee”. In next month she found that price of oil is increased by 10% and of Ghee by 5%, which increase her total expanses on the same amount of oil and ghee by Rs. 46 What was the original price of oil?