1
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
What are the functional groups present in the structure of maltose?
A
One acetal and one ketal
B
One ketal and one hemiketal
C
Two acetals
D
One acetal and one hemiacetal
2
JEE Main 2020 (Online) 4th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A survey shows that 63% of the people in a city read newspaper A whereas 76% read newspaper B. If x% of the people read both the newspapers, then a possible value of x can be:
A
37
B
65
C
29
D
55
3
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
Change Language
The probability of a man hitting a target is $${1 \over {10}}$$. The least number of shots required, so that the probability of his hitting the target at least once is greater than $${1 \over {4}}$$, is ____________.
Your input ____
4
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
Change Language
Let $${\left( {2{x^2} + 3x + 4} \right)^{10}} = \sum\limits_{r = 0}^{20} {{a_r}{x^r}} $$

Then $${{{a_7}} \over {{a_{13}}}}$$ is equal to ______.
Your input ____
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