Question

please answer my question ​

Answer 1

Step-by-step explanation:

Question 12......

1Petrol filled on Monday = 40 litres

Petrol filled on Tuesday= 50 litres

Then cost if Petrol =Rs.44/Litre

Then we have = 44*50 + 44*40

= 44(50+40)

= 44*90

= 3960

Thus , using this property , you can easily take out the total cost of the petrol

44 * 50 and 44* 40

you are multiplying both the numbers with 44

So you just add 50 and 40 and multiply it to 44.

Question 11 .

see using the last property you could take out the other blank like this......

(a) 78 x 34 = 34 x ........

Let the number be n

Then , 78 x 34 = 34 x n

34 x n = 78 x 34

n = 78 x 34 / 34

n = 78

Using this formula you can take out the answer of the other questions

Answer 2

q-11)ans ) 78

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