Question

10 balls cost Rs 150.what is the cost of 26 balls​

Answer 1

10 Balls cost= ₹150

1 Ball Cost= ₹150/10

= ₹15

Now,

26 Balls cost= ₹15×26 = ₹390 Ans

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Answer 2

Answer:

Question

10 balls cost Rs 150.what is the cost of 26 balls

Answer

First we have to find the cost of 1 ball

$cost \: of \: 10 \: balls \: = 150$

$cost \: of \: 1 \: ball \: = \frac{150}{10}$

$cost \: of \: 26 \: balls \: = \frac{150 \times 26}{10}$

$cost \: of \: 26 \: balls \: = 390$

This method is also known as arthimetical method.