JEE Main Mathematics numerical 191: If the roots of z²−15z+54=0 are r and s, enter r+s.
Correct Answer: 15
Explanation:
Vieta gives r+s=15.
MCQ Collection
JEE Main Mathematics Numerical MCQs
Practice JEE Main Mathematics Numerical questions with answers and explanations.
JEE Main Mathematics numerical 192: Enter the positive value of |10²−11|.
Correct Answer: 89
Explanation:
89
JEE Main Mathematics numerical 193: Enter the area of a triangle with base 11 and height 16.
Correct Answer: 88
Explanation:
Area=½×11×16=88.0.
JEE Main Mathematics numerical 194: A sequence starts at 16 and each term is three times the preceding term. Enter the second term.
Correct Answer: 48
Explanation:
48
JEE Main Mathematics numerical 182: Enter the positive value of |23²−12|.
Correct Answer: 517
Explanation:
517
JEE Main Mathematics numerical 181: If the roots of z²−29z+154=0 are r and s, enter r+s.
Correct Answer: 29
Explanation:
Vieta gives r+s=29.
JEE Main Mathematics drill numerical 836: If the roots of z²−28z+180=0 are r and s, enter r+s.
Correct Answer: 28
Explanation:
Vieta gives r+s=28.
JEE Main Mathematics drill numerical 837: Enter the positive value of |11²−6|.
Correct Answer: 115
Explanation:
115
JEE Main Mathematics drill numerical 838: Enter the area of a triangle with base 12 and height 11.
Correct Answer: 66
Explanation:
Area=½×12×11=66.0.
JEE Main Mathematics drill numerical 839: A sequence starts at 29 and each term is three times the preceding term. Enter the second term.
Correct Answer: 87
Explanation:
87
JEE Main Mathematics drill numerical 840: Evaluate 14(4+1).
Correct Answer: 70
Explanation:
14×5=70.
JEE Main Mathematics drill numerical 841: If the roots of z²−24z+135=0 are r and s, enter r+s.
Correct Answer: 24
Explanation:
Vieta gives r+s=24.