$203 \times 205 =$ ___

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Solution

203 3
205 5
______
208 / 15

1. Both the numbers are closer to 200 (so take base = 200).
2. 203 is 3 more than 200 and 205 is 5 more than 200.
3. $(3) \times (5) = 15$
4. 203 + (5) OR 205 + (3) = 208
5. Final answer = $208 \times 200 + 15 = 41615$

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Similar questions

The weight of coffee in 70 jars is shown in the following table :

$\begin{matrix} Weight (in grams) : & 200 - 201 & 201 - 202 & 202 - 203 & 203 - 204 & 204 - 205 & 205 - 206 Frequency : & 13 & 27 & 18 & 10 & 1 & 1 \end{matrix}$

Determine the variance and standard deviation of the above distribution.

Q. The weight of coffee (in

g m s

) in

70

packets is given in the following table.

Weight (in $g m s$ )	No. of Packets
$200 - 201$	$12$
$201 - 202$	$26$
$202 - 203$	$20$
$203 - 204$	$9$
$204 - 205$	$2$
$205 - 206$	$1$

Hence determine the modal weight of coffee packet.

Find the mean using step deviation method
$\begin{matrix} Weight & No. of Packets 200 - 201 & 13 201 - 202 & 27 202 - 203 & 18 203 - 204 & 10 204 - 205 & 1 205 - 206 & 1 \end{matrix}$

Q. Question 18
The weight of coffee in 70 packets are shown in the following table

\begin{matrix} W e i g h t (i n g) & N u m b e r o f p a c k e t s 200 - 201 & 12 201 - 202 & 26 202 - 203 & 20 203 - 204 & 9 204 - 205 & 2 205 - 206 & 1 \end{matrix}

Determine the model weight.

Q. Question 4
The weights of tea in 70 packets are shown in the following table

\begin{matrix} Weight(in~g) & Number of packets 200 - 201 & 13 201 - 202 & 27 202 - 203 & 18 203 - 204 & 10 204 - 205 & 1 205 - 206 & 1 \end{matrix}

Find the mean weight of packets.

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203× 205= ___

203 3 205 5 ______ 208 / 15 1. Both the numbers are closer to 200 (so take base = 200). 2. 203 is 3 more than 200 and 205 is 5 more than 200. 3. (3)× (5)=15 4. 203 + (5) OR 205 + (3) = 208 5. Final answer = 208× 200+15=41615

$203 \times 205 =$ ___

203 3
205 5
______
208 / 15

1. Both the numbers are closer to 200 (so take base = 200).
2. 203 is 3 more than 200 and 205 is 5 more than 200.
3. $(3) \times (5) = 15$
4. 203 + (5) OR 205 + (3) = 208
5. Final answer = $208 \times 200 + 15 = 41615$