Fill in the blanks.
(i) An expression with a variable ,constant and the sign of equality is called an P.
(ii) 8 more than 2 times the number x can be written in algebraic form as Q_.
(iii) An equation is a condition on a R.
| P | Q | R | |
| A | variable | 8x + 2 | equation |
| B | equation | 2x + 8 | variable |
| C | equation | 2x - 8 | variable |
| D | variable | 2x + 8 | equation |
State ‘T’ for true and ‘F’ for false.
(i) Pentagonal prism has 5 pentagons
(ii) Euler’s formula is true for all three dimensional figures.
(iii) All cubes are prism.
(iv) A polyhedron with least number of faces is known as a triangular pyramid.
| (i) | (ii) | (iii) | (iv) | |
| A | F | T | T | F |
| B | T | T | T | F |
| C | F | T | F | T |
| D | F | F | T | T |
of Manu's expenditure and the sum of their expenditures is ₹ 3000, then find the salaries of Ram and Manu respectively.
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