66th B.P.S.C. (Pre) 2020
Given that- 217x + 131y = 913 131x + 217y = 827 Then x and y are respectively
a5 and 7
b3 and 2✓ Correct
c5 and – 7
d2 and 5
eNone of the above/More than one of the above
Explanation
217x + 131y = 913 ..... (i) 131x + 217y = 827 ....... (ii) Add eqⁿ (ii) and eqⁿ (i) 348x + 348y = 1740 x + y = 5 ..... (iii) Sub. eqⁿ (ii) from eqⁿ (i) 86x – 86y = 86 x – y = 1 ..... (iv) Add eqⁿ (iii) and (iv) 2x = 6 x = 3 Put the value of x in eqⁿ (iv) 3 – y = 1 y = 2 So the value of x and y are 3 and 2 respectively. (481) ## Page 30 ## Layout Attribution (Critical) A table of layout regions detected on this page is provided inside <layout_regions> tags. Each region has an id, a label (e.g. text, table, image, header, footer, chart, etc.), and a bounding box in box_2d format [y_min, x_min, y_max, x_max] normalized to 0..1000 with top-left origin.
general-mental-ability