Question

A painter is painting triangular designs on a stadium wall is.


Answer the following questions given below.

1 If we treat these designs as an AP (beginning from left most design),what will be

number of triangles in the fourth design .

a) 9
b) 10
c) 11
d) 12

2 What is the common difference , in above pattern of designs .

a) 3
b) 4
c) 5
d) 6

3 If he continue to paint with this pattern , what will be the number of total

triangles up to sixth design .

a) 51
b) 52
c) 53
d) none of these.

4 What will be number (order) of design (term)in which19 triangles will be made.

a) 8th term
b) 7th term
c) 9th term
d) none of these

5 In any AP, difference between two consecutive terms are.

a) Equal
b) increasing
c) decreasing
d) zero​

Answer 1

1. 11
2. steps wise
3. none of these
4. 7th term
5. zero