Question

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Answer 1

Step-by-step explanation:

First changed the cost of improper fraction 8 2/5 is 42/5 and 36 1/2 is 73/2 then multiplied 42/5 into 73/2

Answer 2

Question:

7. Find the cost of $8\frac{2}{5}$ meters of cloth at Rs. $36\frac{1}{2}$ per meters.

8. If 3/5 of a number exceeds its 2/7 by 44. Find the number.

Solution:

7.

Total meters of cloth = $8\frac{2}{5}$

Cost of cloth per meter = Rs. $36\frac{1}{2}$

Total cost of cloth =>

Total meter of cloth * Cost of cloth per meter

$8\frac{2}{5} * 36\frac{1}{2}$

$\frac{42}{5} * \frac{73}{2}$

$\frac{21}{5} * \frac{73}{1}$

$\frac{1533}{5}$

$306\frac{3}{5}$

The cost of $8\frac{2}{5}$ is Rs. $306\frac{3}{5}$

8.

Let x be the number.

3/5 of a number = $\frac{3}{5} * x$

Number exceeds 2/7 by 44 = $x * \frac{2}{7} + 44$

$\frac{3}{5} * x = x * \frac{2}{7} + 44$

$\frac{3x}{5} - \frac{2x}{7} = 44$

$\frac{21x - 10x}{35} = 44$

$11x = 44 * 35$

$x = \frac{44 * 35}{11}$

$x = 4 * 35$

$x = 140$

The number is 140.