Question

1) A labor receives ₹385 for 7 days work as his wages. What will be his wages, if works for 20 days?
2) If 1w apples cost ₹30 what is the cost of 28 apples?

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Answer 1

Question

A labor receives ₹385 for 7 days work as his wages. What will be his wages, if works for 20 days?

Answer

₹1100

Step-by-step explanation:

Let his wages for 20 days be ₹x

$\boxed{number \: of \: days \: \boxed{ \: \: \: 7} \boxed{ \: \: \: 20}} \\ \boxed{wages \:( in\: Rs.) \: \boxed{ \: \: \: 385} \boxed{ \: \: \: \large{x}}}$

If Labour works for more days his wages will be more.

Hence, it is a case of direct variation.

$\frac{7}{385} = \frac{20}{x} \\ x = \frac{20 \times 385}{7} = Rs .1100$

➪ Hence, his wages for 20 days will be ₹1100.

Alternative Method :

• 7 days wages = Rs.385
• 1 day wage Rs 385/7

➪20 day wages = Rs. 385/7×20 = Rs. 1100.

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Question

If 12 apples cost ₹30 what is the cost of 28 apples?

*Error in above question

Answer

₹48

Step-by-step explanation:

Let the cost of 28 apples be x. Then we have ,

$\boxed{apple\: \boxed{ \: \: \: 12} \boxed{ \: \: \: 28}} \\ \boxed{wages \:( in\: Rs.) \: \boxed{ \: 30} \boxed{ \: \: \large{x}}}$

More apples the more cal than it is the case of direct variation.

$\frac{12}{30} = \frac{28}{x} \\ x = \frac{28 \times 30}{12} = Rs.70$

Alternative Method:

• 12 apples cost = Rs. 30
• 1 apple costs = Rs. 30/12
• 28 apples cost = Rs. 30/12×28 = Rs.70

➪ Hence, 28 apples will be cost Rs. 70

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Hope It Helps You

Answer 2

Question

A labor receives ₹385 for 7 days work as his wages. What will be his wages, if works for 20 days?

Answer

₹1100

Step-by-step explanation:

Let his wages for 20 days be ₹x

$\boxed{number \: of \: days \: \boxed{ \: \: \: 7} \boxed{ \: \: \: 20}} \\ \boxed{wages \:( in\: Rs.) \: \boxed{ \: \: \: 385} \boxed{ \: \: \: \large{x}}}$

If Labour works for more days his wages will be more.

Hence, it is a case of direct variation.

$\frac{7}{385} = \frac{20}{x} \\ x = \frac{20 \times 385}{7} = Rs .1100$

➪ Hence, his wages for 20 days will be ₹1100.

Alternative Method :

7 days wages = Rs.385

1 day wage Rs 385/7

➪20 day wages = Rs. 385/7×20 = Rs. 1100.

_____________________________

Question

If 12 apples cost ₹30 what is the cost of 28 apples?

*Error in above question

Answer

₹48

Step-by-step explanation:

Let the cost of 28 apples be x. Then we have ,

$\boxed{apple\: \boxed{ \: \: \: 12} \boxed{ \: \: \: 28}} \\ \boxed{wages \:( in\: Rs.) \: \boxed{ \: 30} \boxed{ \: \: \large{x}}}$

More apples the more cal than it is the case of direct variation.

$\frac{12}{30} = \frac{28}{x} \\ x = \frac{28 \times 30}{12} = Rs.70$

Alternative Method:

12 apples cost = Rs. 30

1 apple costs = Rs. 30/12

28 apples cost = Rs. 30/12×28 = Rs.70

➪ Hence, 28 apples will be cost Rs. 70

_____________________________

Hope It Helps You