What is the greatest number that will divide 62, 78 and 109 leaving remainders 2, 3 and 4 respectively?

Find the ratio of the HCF and the LCM of the numbers 18 and 30.

The LCM of two co-prime numbers is 5005. If one of the numbers is 65, then find the other number.

Numbers divisible by 4 and 6 are divisible by 24. Verify this statement and support your answer with an example

Convert into lower units: 
(i) 15 km (m, cm, mm)
(ii) 12 kg (g, mg)

Geetha brought 2 l and 250 ml of water in a bottle. Her friend drank 300 ml from it. How much of water is remaining in the bottle?

In a JRC one day camp, 150 gm of rice and 15 ml oil are needed for a student. If there are 40 students to attend the camp how much of rice and oil are needed?

If Wednesday falls on 20^th of December 2017. What is the day on 8^th june 2018? Also say the number of days between these two dates.

Say the time in two ways:

Barathan offers his customers a discount of Rs. 50 on each shirt and still makes a profit of Rs. 100 per shirt. What is the actual cost price of the shirt that is marked @ Rs. 800?

Mani buys a gift article for Rs. 1500. He wants to sell it at a profit of Rs. 150 on sales and he marks @ Rs.1800. What is the discount that he will give to his customers?

Prepare a bill for the following books of biographies purchased from Maruthu Book Store, Chidambaram on 12.04.2018 bearing the bill number 507. 10 copies of Subramanya Bharathiar @ Rs. 55 each, 15 copies of Thiruvalluvar @ Rs. 75 each, 12 copies of Veeramamunivar @ Rs. 60 each and 12 copies of Thiru.Vi.Ka @ Rs. 70 each.

Fill up the appropriate boxes in the following table.

Sl. No	C.P. in Rs	M.P. in Rs	S.P. in Rs	Discount in Rs	Profit in Rs	Loss in Rs
(i)	110	130		Nil
(ii)	110	130		10
(iii)	110	130		30
(iv)	110	120			Nil	10
(v)		120		10	20	Nil

Somu bought a second hand bike for Rs. 28,000 and spent Rs. 2,000 on its repair. He sold it for Rs. 30,000. Find his profit or loss.

Valarmathi sold her pearl set for Rs. 30,000 at profit of Rs. 5000. Find the cost price of the pearl set.

Can a triangle be formed with 7 cm, 10 cm and 5 cm as its sides?

Can a triangle be formed with 8 cm, 3 cm and 4 cm as its sides?

Draw a line segment AB = 7 cm and mark a point P on it. Draw a line perpendicular to the given line segment at P.

Find the distance between the given lines using a set square at two different points on each of the pairs of lines and check whether they are parallel.

In one year, a paper company had sold 6,25,610 notebooks out of a stock of 7,50,800 notebooks. Find the number of notebooks left unsold.

If a ration shop has distributed 1,00,000 kg of rice to 5000 families, then find the quantity of rice given to each family?

Convert into a Tree diagram [(9−4)\(\times\)8] + [(8+2)\(\times\)3]

Convert into a Tree diagram 20+[8\(\times\)2+{(6\(\times\)3)−10\(\div \)5}].

Convert the Tree diagram into a numerical expression.

Convert the tree diagram into an algebraic expression.