NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 7: Algebra

Writing Expressions

One more than twice the number.

20°C less than the present temperature.

The successor of an integer.

The perimeter of an equilateral triangle, if side of the triangle is m.

Area of the rectangle with length k units and breadth n units.

Omar helps his mother 1 hour more than his sister does.

Two consecutive odd integers.

Two consecutive even integers.

Multiple of 5.

The denominator of a fraction is 1 more than its numerator.

The height of Mount Everest is 20 times the height of Empire State building.

If a note book costs Rs p and a pencil costs Rs 3, then the total cost (in Rs) of two note books and one pencil.

z is multiplied by –3 and the result is subtracted from 13.

p is divided by 11 and the result is added to 10.

x times of 3 is added to the smallest natural number.

6 times q is subtracted from the smallest two digit number.

Write two equations for which 2 is the solution.

Write an equation for which 0 is a solution.

Write an equation whose solution is not a whole number.