JEE Main Chemistry drill numerical 1030: Evaluate 20(19+1).
Correct Answer: 400
Explanation:
20×20=400.
MCQ Collection
jee-main-numerical MCQs
Practice jee-main-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 1032: Enter the positive value of |22²−12|.
Correct Answer: 472
Explanation:
472
JEE Main Chemistry drill numerical 1033: Enter the area of a triangle with base 23 and height 17.
Correct Answer: 195.5
Explanation:
Area=½×23×17=195.5.
JEE Main Chemistry drill numerical 1034: 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 Chemistry drill numerical 1035: Evaluate 2(10+1).
Correct Answer: 22
Explanation:
2×11=22.
JEE Main Chemistry drill numerical 1036: If the roots of z²−18z+45=0 are r and s, enter r+s.
Correct Answer: 18
Explanation:
Vieta gives r+s=18.
JEE Main Chemistry drill numerical 1037: Enter the positive value of |4²−3|.
Correct Answer: 13
Explanation:
13
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.