The cost of 6 1/2 kg of apples is Rs. 520. What is the rate of one kg of apples

Mathematics

1 answer:

MakcuM [25]3 years ago

7 0

Step-by-step explanation:

So, cost of 6.5 kg of apples is Rs. 520 and we need to find cost of one kg apples.

<h2>It can be done just by applying Unitary Method!</h2>

So,

6.5 kg -- Rs. 520

1 kg -- Rs.(520/6.5) = Rs.80

<h3>So, cost of 1 kg apples is Rs.80.</h3>

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What is the sum of the integers between the square root of 12 and 40?

satela [25.4K]

1.

the closest perfect squares of 12 are 9 and 16,

that is 9<12<16

so
$\sqrt{9}\ \textless \ \sqrt{12}\ \textless \ \sqrt{16}$

$3\ \textless \ \sqrt{12}\ \textless 4$

this means, $\sqrt{12}$ is 3 point something...

2.

similarly

36<40<49

so

$\sqrt{36}\ \textless \ \sqrt{40}\ \textless \ \sqrt{49}$

$6\ \textless \ \sqrt{40}\ \textless \ 7$

which means $\sqrt{40}$ is 6 point something...

3.

<span>the sum of the integers between the square root of 12 and 40 is the sum of 4, 5 and 6, since 4 is the smallest integer after root 12, and 6 the greatest integer to before root of 40.

Answer: 15</span>

8 0

3 years ago

I)x-1 by 4=3<br>ii)3x+6 by 2=3 by 2<br>iii)3x-1by5=2x+3by7

suter [353]

Answer:

13,-1,2

Step-by-step explanation:

i hope it is helpful......for you