Question

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Answer 1

3. 3/5

4.17/3

5. 6

6. 28

7.112

8.16

9.12

10. 90

Answer 2

Answer:

$3. \: \: \frac{4x}{5} = \frac{12}{25} \\ 4x = \frac{12 \times 5}{25} \\ x = \frac{12}{5} \div 4 \\ x = \frac{12}{5} \times \frac{1}{4} = \frac{3}{5}$

$4. \: \: t + \frac{2}{3} = ( - 5) \\ t = - 5 - \frac{2}{3} \\ t = \frac{ - 15 - 2}{3} \\ t = \frac{ - 17}{3}$

$5. \: \: 5y + 7 = 37 \\ 5y = 37 - 7 \\ 5y = 30 \\ y = \frac{30}{5} = 6$

$6. \: \: let \: the \: number \: be \: x \: \\ so \: x + 50 = 78 \\ x = 78 - 50 \\ x = 28 \\ so \: the \: number \: is \: 28$

$7. \: \: let \: the \: number \: be \: x \: \\ so \: x - 32 = 80 \\ x = 80 + 32 \\ x = 112 \\ so \: the \: number \: is \: 112$

$8. \: \: let \: the \: pocket \: money \: be \: x \: \\ so \: 5x = 80 \\ x = \frac{80}{5} = 16 \\ so \: his \: pocket \: money \: is \: 16rs$

$9. \: \: let \: the \: number \: be \: x \: \\ so \: \frac{1}{5} \times x = 60 \\ x = \frac{60 \times 5}{1} \\ x = 300 \\ so \: the \: number \: is \: 300$

$10. \: \: let \: the \: total \: marks \: be \: x \\ so \: \frac{2}{3} \times x = 60 \\ x = \frac{60 \times 3}{2} \\ x = 90 \\ so \: total \: marks \: is \: 90$

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