Question 11
In the following question out of the four options only one is correct, write the correct answer.
The value of S in 13+S=25 is :
(a) 45
(b) 115
(c) 10
(d) 0
Given, 13+S=25⇒S=25−13⇒S=6−515∴S=115
Question 14
Out of the four options, only one is correct. Write the correct answer.
The value of 3x2−5x+3, when x = 1 is
(a) 1 (b) 0 (c) -1 (d) 11
Out of the given four options, only one is correct. Write the correct answer.
The number of lines of symmetry in a ruler is
(a) 0 (b) 1 (c) 2 (d) 4