Question 1 :
I have a total of Rs.300 in coins of denomination Re. 1, Rs. 2 and Rs. 5. The number of Rs. 2 coins is 3 times the number of Rs. 5 coins. The total number of coins is 160. How many coins of Rs. 2 are with me?

Question 2 :
The denominator of a rational number is greater than its numerator by 8. If the numerator is increased by 17 and the denominator is decreased by 1, the number obtained is $\frac{3}{2}$. Find the rational number.

Question 3 :
A linear equation is an equation where the highest power of the variable is ______.

Question 5 :
The present age of Sahil's mother is 3 times the present age of Sahil. After 5 years their ages will add to 66 years. Find the present age of Sahil.

Question 6 :
Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs.50 per metre and trouser material that costs him Rs.90 per metre.For every 3 meters of the shirt material he buys 2 metres of the trouser material. He sells the materials at 12% and 10% profit respectively. His total sale is Rs. 36,600.How much trouser material did he buy?

Question 9 :
A rational number is such that when you multiply it by $\frac{5}{2}$ and add $\frac{2}{3}$ to the product,you get $-\frac{7}{12}$. What is the number?

Question 10 :
Baichung’s father is 26 years younger than Baichung’s grandfather and 29 years older than Baichung. The sum of the ages of all the three is 135 years. What is the age of Baichung?

Question 17 :
A grandfather is ten times older than his granddaughter. He is also 54 years older than her. Find grandfather's age.

Question 18 :
Present ages of Anu and Raj are in the ratio 4:5. Eight years from now the ratio of their ages will be 5:6. Find Anu's present age.

Question 19 :
The base of an isosceles triangle is $\frac{4}{3}$ cm. The perimeter of the triangle is $4\frac{2}{15}$ cm.What is the length of either of the remaining equal sides?

Question 20 :
Lakshmi is a cashier in a bank. She has currency notes of denominations Rs.100, Rs.50 and Rs.10, respectively. The ratio of the number of these notes is 2:3:5. The total cash with Lakshmi is Rs.4,00,000. How many notes of Rs. 50 does she have?