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## Explanation

- If 25 toys cost Rs 335.
- The cost of 55 toys can be figure out in this way.

Two given entities here are

- Quantity of toys
- Cost

- Cost increases as the quantity of toys increases.
- Cost decreases as the quantity of toys decreases.

This clearly indicates that there is direct relation.

Direct/Indirect relation tells how the equation will be written.

25/55 = 335/y

This equation gives the cost of 55 toys.

## To Find

Cost of 55 toys = ?

## Solution

**Method I**

Let suppose cost of 55 toys = y

Toys Cost

25 335

55 y

As, there is direct relation so;

25/55 = 335/y

25y = 55 x 335

25y = 18425

y = 18425/25

y = 737

**Cost of 55 toys = Rs. 737 answer**

**Method II**

Cost of 25 toys = 335

Cost of 1 toy = 335/25 = 13.4

Cost of 55 toys = 13.4 x 55 = 737

**Cost of 55 toys = Rs. 737 answer**

## Conclusion

If 25 toys cost Rs 335, the cost of 55 toys will be Rs. 737.

V nice short questions of maths

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