Question
Directions: In each of the following questions, a word
has been used in sentences in THREE different ways. Choose the option corresponding to the sentences in which the usage of the word is CORRECT or APPROPRIATE. Bolster (i) A chef's knife with a steel blade and a synthetic handle will weigh and feel differently than a chef's knife with a steel blade, a bolster and a wooden handle. (ii) Billions of US dollars were siphoned away from infrastructure projects to bolster security and pay for the promotion of democracy. (iii) This can bolster confidence and speed healing.Solution
i- here, ‘bolster’ is used as a noun. It means ‘a part on a vehicle or tool providing structural support or reducing friction.’. in ii and iii, ‘bolster’ is used as a verb which means ‘to support or improve something or make it stronger’.
(i) x² – 3x – 40 = 0
(ii) y² + 11y + 30 = 0
I. 77x² - 25x – 72 = 0
II. 42y² + 13y – 42 = 0
I. x² - 208 = 233
II. y² + 47 - 371 = 0
Equation 1: x² + 16x + 63 = 0
Equation 2: y² + 10y + 21 = 0
I. 6y2 – 23y + 20 = 0
II. 4x2 – 24 x + 35 = 0
I. p2 – 2p – 15 = 0
II. q2 + 4q – 12 = 0
I. 8x² - 78x + 169 = 0
II. 20y² - 117y + 169 = 0
l). 2p² + 12p + 18 = 0Â
ll). 3q² + 13q + 12 = 0
I. 144x² - 163x - 65 = 0
II. 91y² - 128y -48 = 0
I. 15y2 + 26y + 8 = 0
II. 20x2 + 7x – 6 = 0