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9. Find the area of a rectangular park which is 41 m long and 18. m broad. ADVANCED 10. How many tablets of 5mg can be made from 0.5 kg of medicine? 11. Mr.Verma bought a packet of toffees for his daughter and a tin of biscuits for his son. On toffees, he spent 34 of the money spent on biscuits. The price of the tin of biscuits was Rs60.20.How much money did Mr.Verma spend?

9. Find the area of a rectangular park which is 41 m long and 18. m broad. ADVANCED-example-1

1 Answer

9 votes

Answer:

9. 775 square meters

10. 100,000 tablets

11. ₹105.35

Explanation:

9. You want the area of a rectangle 41 2/3 m by 18 3/5 m.

10. You want the number of 5 mg tablets that can be made from 0.5 kg of medicine.

11. You want the total spent if ₹60.20 was spent on biscuits and 3/4 of that amount was spent on toffees.

9. Area

The area is the product of the length and width:

A = LW

A = (41 2/3 m)(18 3/5 m) = 775 m²

The area of the park is 775 square meters.

10. Tablets

If n is the number of tablets that can be made, their total mass is ...

n(5 mg) = 0.5 kg

n = (0.5 kg)/(5 mg) = (500 g)/(0.005 g) = 100,000

100,000 tablets can be made from the medicine.

11. Spending

The total spending is the sum of the amounts spent on each item. The amount spent on toffees is 3/4 of the amount spent on biscuits, so the total is ...

₹60.20 + 3/4 · ₹60.20 = (1 +3/4)·₹60.20 = ₹105.35

Mr. Verma spent a total of ₹105.35.

9. Find the area of a rectangular park which is 41 m long and 18. m broad. ADVANCED-example-1
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