Find the ratio of number of surgical mask to the number of N95 masks sold on Tuesday.
Total number of masks sold on Monday = 432/0.72 = 600 Number of N95 masks sold on Monday = (600 – 60)/2 = 270 Number of surgical masks sold on Monday [P] = (600 – 270) = 330 Total number of masks sold on Tuesday = 432 Number of surgical masks sold on Tuesday [Q] = (80/100) × 330 = 264 Number of N95 masks sold on Tuesday [R] = 432 – 264 = 168 Total number of masks sold on Wednesday = (600/60) × 43 = 430 Number of surgical masks sold on Wednesday = (20/43) × 43 = 200 Number of N95 masks sold on Wednesday [S] = 430 - 200 = 230 Required ratio = 264 : 168 = 11:7
I. 2x² - 15x + 13 = 0
II. 3y² - 6y + 3 = 0
I. 99x² + 161 x + 26 = 0
II. 26 y² + 161 y + 99 = 0
I. 35x² + 83x + 36 = 0
II. 42y² + 53y + 15 = 0
I. 18p²- 21p + 6 = 0
II. 16q² - 24q +9 = 0
I. √(74x-250 )– x=15
II. √(3y²-37y+18)+ 2y=18
I.70x² - 143x + 72 = 0
II. 80 y² - 142y + 63 = 0
I. 2x2 – 19x + 45 = 0
II. y2 – 14y + 48 = 0
I. 3x2 = 2x2 + 9x – 20
II. 3y2 = 75
A and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
I. 3x2 + 3x - 60 = 0
II. 2y2 - 7y + 5 = 0