Question

Karunya bought three fields.

• Find the area of all the three fields.
Field (A) ____________ square metre.
Field (B) ____________ square metre.
Field (C) ____________ square metre.
He bought field (A) at the rate of Rs 95 for a square metre, field (B) at Rs 110 for a square metre and field (C) at Rs 120 for a square metre.
• Find the cost of all three fields.

Answer 1

• Length of field A = 27 m

Breadth of field A = 28 m
Area of field A = Length × Breadth
= 27 × 28
= 756 square metres
Working:



Length of field B = 36 m
Breadth of field B = 12 m
Area of field B = Length × Breadth
= 36 × 12
= 432 square metres
Working:


Length of field C = 27 m
Breadth of field C = 19 m
Area of field C = Length × readth
= 27 × 19
= 513 square metres

Working:

• Cost of 1 square metre of field A = Rs 95

Now,
Area of field A = 756 square metres
∴ Cost of 756 square metres of field A = 756 × Rs 95
= Rs 71,820
Working:



Cost of 1 square metre of field B = Rs 110
Now,
Area of field B = 432 square metres
∴ Cost of 432 square metres of field B = Rs 432 × 110
= Rs 47,520

Working:



Cost of 1 square metre of field C = Rs 120
Now,
Area of field C = 513 square metres
∴ Cost of 513 square metres of field C = Rs 513 × 120
= Rs 61,560

Working:



Total cost of all three fields = Rs 71820 + Rs 47520 + Rs 61560
= Rs 1,80,900
Working:

$\begin{array}{cccccc}& \stackrel{1}{7}& \stackrel{1}{1}& \stackrel{1}{8}& 2& 0\\ & 4& 7& 5& 2& 0\\ +& 6& 1& 5& 6& 0\\ 1& 8& 0& 9& 0& 0\\ & & & & & \end{array}$

Thus, the total cost of all three fields is Rs 1,80,900.