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MATHS [1 Mark Question Answer]

Simple Linear Equations (Including Word Problems) · ICSE STD 7 (ICSE - English Medium). 12 questions.

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[1 Mark Question Answer]

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12 questions · timed · auto-graded

Question 11 Mark
Solve the following equation:
$\frac{x}{9}=2$
Answer
$\frac{x}{9}=2$
$\Rightarrow x=2 \times 9=18$
$\therefore \mathrm{x}=18$
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Question 21 Mark
Solve the following equation:
2x = 0
Answer

$\begin{aligned} & 2 x=0 \\ & \Rightarrow x=\frac{0}{2}=0\end{aligned}$
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Question 41 Mark
Solve the following equation:
3p = 12
Answer

$\begin{aligned} & 3 p=12 \\ & \Rightarrow P=\frac{12}{3}=4\end{aligned}$
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Question 81 Mark
Solve the following equation:
$\frac{5}{8} \mathrm{n}=20$
Answer

$\begin{aligned} & \frac{5}{8} \mathrm{n}=20 \\ & \Rightarrow 5 \mathrm{n}=20 \times 8=160 \\ & \Rightarrow \mathrm{n}=\frac{160}{5}=32 \\ & \therefore \mathrm{n}=32\end{aligned}$
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Question 91 Mark
Solve the following equation:
1.3b = 39
Answer

$\begin{aligned} & 1.3 \mathrm{~b}=39 \\ & \Rightarrow \mathrm{b}=\frac{39}{1.3}=\frac{39 \times 10}{13}=30 \\ & \therefore \mathrm{b}=30\end{aligned}$
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Question 101 Mark
Solve the following equation:
- 3x = 15
Answer
$-3 x=15$
$\Rightarrow \mathrm{x}=\frac{15}{-3}=-5$
$\therefore x=-5$
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[1 Mark Question Answer] - MATHS STD 7 Questions - Vidyadip