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JEE Main 2021 (Online) 16th March Evening Shift
Numerical  +4  -1
Let $${1 \over {16}}$$, a and b be in G.P. and $${1 \over a}$$, $${1 \over b}$$, 6 be in A.P., where a, b > 0. Then 72(a + b) is equal to ___________.
2
JEE Main 2021 (Online) 16th March Morning Shift
Numerical  +4  -1
Consider an arithmetic series and a geometric series having four initial terms from the set {11, 8, 21, 16, 26, 32, 4}. If the last terms of these series are the maximum possible four digit numbers, then the number of common terms in these two series is equal to ___________.
3
JEE Main 2021 (Online) 26th February Evening Shift
Numerical  +4  -1
The total number of 4-digit numbers whose greatest common divisor with 18 is 3, is _________.
sequence $$-$$16, 8, $$-$$4, 2, ...... satisfy the equation
4x2 $$-$$ 9x + 5 = 0, then p + q is equal to __________.