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प्रश्न
Answer the following:
Take Sarita’s present age to be y years
- What will be her age 5 years from now?
- What was her age 3 years back?
- Sarita’s grandfather is 6 times her age. What is the age of her grandfather?
- Grandmother is 2 years younger than grandfather. What is grandmother’s age?
- Sarita’s father’s age is 5 years more than 3 times Sarita’s age. What is her father’s age?
संक्षेप में उत्तर
उत्तर
- Sarita’s age after 5 years from now = Sarita’s present age + 5 = y + 5
- 3 years ago, Sarita’s age = Sarita’s present age − 3 = y − 3
- Grandfather’s age = 6 × Sarita’s present age = 6y
- Grandmother’s age = Grandfather’s present age − 2 = 6y − 2
- Father’s age = 5 + 3 × Sarita’s present age = 5 + 3y
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संबंधित प्रश्न
Complete the last column of the table.
Equation | Value | Say, whether the Equation is Satisfied. (Yes/No) |
`m/3 = 2` | m = 6 |
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7n + 5 = 19 (n = 2)
Write the given equation in statement form:
`(3m)/5 = 6`
Add the following:
\[2 x^2 - 3xy + y^2 \]
\[ - 7 x^2 - 5xy - 2 y^2 \]
4 x2 + xy - 6 y2
_______________
Simplify:
12x − [3x3 + 5x2 − {7x2 − (4 − 3x − x3) + 6x3} − 3x]
Write the following statement as an equation:
A number exceeds 5 by 3.
Write the following statement as an equation:
If 12 is subtracted from a number, the result is 24.
Solve the following equation and verify the answer:
x + 3 = −2
Solve the following equation and verify the answer:
x − 7 = 6
Solve:
\[\frac{2x}{5} - \frac{x}{2} = \frac{5}{2}\]