JEE Main Chemistry drill numerical 1030: Evaluate 20(19+1).
Correct Answer: 400
Explanation:
20×20=400.
MCQ Collection
JEE Main Chemistry Numerical MCQs
Practice JEE Main Chemistry Numerical questions with answers and explanations.
JEE Main Chemistry drill numerical 1031: If the roots of z²−28z+147=0 are r and s, enter r+s.
Correct Answer: 28
Explanation:
Vieta gives r+s=28.
JEE Main Chemistry drill numerical 1016: If the roots of z²−23z+102=0 are r and s, enter r+s.
Correct Answer: 23
Explanation:
Vieta gives r+s=23.
JEE Main Chemistry drill numerical 1017: Enter the positive value of |7²−5|.
Correct Answer: 44
Explanation:
44
JEE Main Chemistry drill numerical 1018: Enter the area of a triangle with base 8 and height 10.
Correct Answer: 40
Explanation:
Area=½×8×10=40.0.
JEE Main Chemistry drill numerical 1019: 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 Chemistry drill numerical 1020: Evaluate 10(3+1).
Correct Answer: 40
Explanation:
10×4=40.
JEE Main Chemistry drill numerical 1021: If the roots of z²−19z+88=0 are r and s, enter r+s.
Correct Answer: 19
Explanation:
Vieta gives r+s=19.
JEE Main Chemistry drill numerical 1022: Enter the positive value of |12²−13|.
Correct Answer: 131
Explanation:
131
JEE Main Chemistry drill numerical 1023: Enter the area of a triangle with base 13 and height 18.
Correct Answer: 117
Explanation:
Area=½×13×18=117.0.
JEE Main Chemistry drill numerical 1024: A sequence starts at 20 and each term is three times the preceding term. Enter the second term.
Correct Answer: 60
Explanation:
60
JEE Main Chemistry drill numerical 1025: Evaluate 15(11+1).
Correct Answer: 180
Explanation:
15×12=180.