JEE Main Physics numerical 236: If the roots of z²−18z+80=0 are r and s, enter r+s.
Correct Answer: 18
Explanation:
Vieta gives r+s=18.
MCQ Collection
jee-main-paper-1 MCQs
Practice jee-main-paper-1 questions with answers and explanations.
JEE Main Physics numerical 237: Enter the positive value of |9²−15|.
Correct Answer: 66
Explanation:
66
JEE Main Physics numerical 238: Enter the area of a triangle with base 10 and height 3.
Correct Answer: 15
Explanation:
Area=½×10×3=15.0.
JEE Main Physics numerical 239: A sequence starts at 19 and each term is three times the preceding term. Enter the second term.
Correct Answer: 57
Explanation:
57
JEE Main Physics numerical 240: Evaluate 12(13+1).
Correct Answer: 168
Explanation:
12×14=168.
JEE Main Chemistry numerical 241: If the roots of z²−31z+234=0 are r and s, enter r+s.
Correct Answer: 31
Explanation:
Vieta gives r+s=31.
JEE Main Physics numerical 228: Enter the area of a triangle with base 23 and height 4.
Correct Answer: 46
Explanation:
Area=½×23×4=46.0.
JEE Main Physics numerical 217: Enter the positive value of |12²−17|.
Correct Answer: 127
Explanation:
127
JEE Main Physics numerical 218: Enter the area of a triangle with base 13 and height 5.
Correct Answer: 32.5
Explanation:
Area=½×13×5=32.5.
JEE Main Physics numerical 219: A sequence starts at 24 and each term is three times the preceding term. Enter the second term.
Correct Answer: 72
Explanation:
72
JEE Main Physics numerical 220: Evaluate 15(15+1).
Correct Answer: 240
Explanation:
15×16=240.
JEE Main Physics numerical 221: If the roots of z²−19z+48=0 are r and s, enter r+s.
Correct Answer: 19
Explanation:
Vieta gives r+s=19.