Algebra

'variable' means that ??

• It can take 2 values

• It has a fixed value

• It can take different values

• It can take 4 values

Write an expression: Raju s father s age is 5 years more than 3 times Raju s age. If Raju s age is x years, then father’s age is

• 3x + 5

• 5 – 3x

• 3x- 5

• 15x

Arpita is x years of age now. 5 years ago her age was

• (5-x) years

• (5+x) years

• 5x years

• (x-5) years

Think a number and add 13 to it. you get 27. The equation for this is

• x-13 = 27

• 13x = 27

• x + 13=27

• x + 27 = 13

If I spend f rupees from 100 rupees,the money left with me is ____________ rupees.

y multiplied by 10 and then 17 added to the product

• 10y+17

• 17y+10

• y+17

Identify the variable in it

• The number of edges of a cube

• The number of fingers on your hand

• The number of students absent on a particular day in your class

• Your age

The general rule for this matchstick pattern

• 2n

• 3n

• 4n

• 5n

If the cost of one chair is ₹p and cost of one table is ₹g, then the cost of 5 chairs and 2 tables will be __________.

• ₹p + ₹g

• ₹2p + ₹5g

• ₹5p + ₹2g

• ₹7pg

The rule, which gives the number of matchsticks required to make the matchstick pattern L, is

• 2n

• 3n

• 4n

• 5n