Question

The number of rooms on the ground floor of a building is 15 less than the twice of the
number of rooms on first floor. If the first floor has x rooms, how many rooms does the
ground floor has? 2 marks

Answer 1

Answer:

Answer:

Perfect questions for guys interested in maths..

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,    

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

Explanation:

Step-by-step explanation:

Answer 2

Answer:

x + x(xx)

Put the value of x = 2 in the above expression we get,    

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

Step-by-step explanation: