Question 1: Express using decimals:

(i) paise in rupees (ii) rupees paise in rupees

(iii) mm in meters (iv) cm in kilometres

(v) mg in grams (vi) kg g in kilograms

Answer:

(i) paise in rupees Rupees

(ii) rupees paise in rupees Rupees

(iii) mm in meters meters

(iv) cm in kilometres Kilometres

(v) mg in grams grams

(vi) kg g in kilograms kilograms

Question 2: Aditya traveled km by car while Sriraj traveled km. Who traveled more and by how much?

Answer:

Siraj traveled more because

Siraj traveled Km

Question 3: A trader bought a notebook for , a book for Rs. and a pen for Rs. . He sold all the three things for Rs. . Find his profit or loss.

Answer:

Total cost to the trader Rs.

Total Selling Price Rs.

Profit = Selling Price – Cost Price

Question 4: By how much should be decreased to get ?

Answer:

Therefore

Question 5: The cost of one electric oven is Rs. . Find the cost of such electric ovens.

Answer:

Cost of electric ovens Rs.

Question 6: One gram of gold costs Rs. . How much does a bracelet made of g of gold cost?

Answer:

The bracelet cost Rs.

Question 7: A car covers km on one liter of petrol. How much distance will it cover in litres of petrol?

Answer:

Distance covered

Question 8: Find the average of the numbers and .

Answer:

Average

Question 9: The perimeter of a polygon is cm. If the length of each side of the polygon is cm, then find the number of sides of the polygon.

Answer:

Number of sides of the polygon

Question 10: How many pieces of plywood, each cm thick, are required to make a pile m high?

Answer:

Number of pieces

Question 11: A sum of Rs. was divided among boys and girls in such a way that each boy gets Rs. and each girl gets Rs. . Find the number of girls.

Answer:

Let the number of girls be

Question 12: An employee may claim~ for each km which he travels by taxi and~ for each km he drives his own car. If in a particular day he claimed Rs. for travelling a distance of km, how many km did he drive his own car?

Answer:

Let the km traveled by car

km by his own car.