Subject Experts Solutions for Chapter: Linear and Quadratic Equations, Exercise 1: Practice Exercise

The price of $2$trousers and $4$shirts is $₹ 1600$ with the same amount one can buy $1$ trouser and $6$shirts. If one wants to buy $12$shirts he has to pay

The value of $\mathrm{k}$or which $\mathrm{kx} + 3 \mathrm{y} - \mathrm{k} + 3 = 0 \text{and} 12\mathrm{x} + \mathrm{ky} = \mathrm{k},$ have infinite solutions, is

A farmer has some hens and some goats. If the total number of animal heads is $80$ and the total number of animal feet is $200$, what is the total number of goats?

A man went to the Reserve Bank of India with ₹ $2000$. He asked the cashier to give him ₹ $10$ and ₹ $20$notes only in return. The man got 150 notes in all. How many notes of ₹ $10$ did he receive?

A person spends$\frac{1}{3}$ part of his income on food, $\frac{1}{4}$ part on house rent and remaining ? $630$ on other items. The house rent is

Two consecutive even positive integers, sum of the squares of which is $1060$, are

If the product of zeroes of the polynomial ${\mathrm{ax}}^2-6\mathrm{x}-6$ is $4$, then find the value of  $\text{'}\mathrm{a}\text{'}$.

Keerthi's father gave him some money to buy books. He spent half of the money equally to buy books and entertaining his friends. whatever amount left with him, he deposited half in his savings account and gave ₹ $5$to a poor person as charity. Finally, Keerthi was left with ₹ $20$which he returned to his father. What amount did his father give him initially.