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TIFRGS2021 Question
Let $d$ be the number of positive square integers (that is, it is a square of some integer) that are factors of $20^5\times21^5$. Which of the following is true about $d$? (A) $50 \leq d < 100$ (B) $100 \leq d < 150$ (C) $150 \leq d < 200$ (D) $200 \leq d < 300$ (E) $300 \leq d$
asked
Mar 24
in
Combinatory
by
zxy123
(
3.6k
points)

5
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tifr2021
factors
0
votes
0
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GATE2018GA4 Video Solution
What would be the smallest natural number which when divided either by $20$ or by $42$ or by $76$ leaves a remainder of $7$ in each case? $3047$ $6047$ $7987$ $63847$
asked
Apr 18, 2020
in
Numerical Ability
by
admin
(
573
points)

9
views
gate2018
numericalability
factors
videosolution
0
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0
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GATE201362 Video Solution
Out of all the $2$digit integers between $1$ and $100,$ a $2$digit number has to be selected at random. What is the probability that the selected number is not divisible by $7$ ? $\left(\dfrac{13}{90}\right)$ $\left(\dfrac{12}{90}\right)$ $\left(\dfrac{78}{90}\right)$ $\left(\dfrac{77}{90}\right)$
asked
Apr 18, 2020
in
Numerical Ability
by
admin
(
573
points)

5
views
gate2013
numericalability
easy
probability
factors
videosolution
0
votes
0
answers
GATE20142GA4 Video Solution
What is the average of all multiples of $10$ from $2$ to $198$? $90$ $100$ $110$ $120$
asked
Apr 18, 2020
in
Numerical Ability
by
admin
(
573
points)

7
views
gate20142
numericalability
easy
numericalcomputation
factors
videosolution
0
votes
0
answers
GATE2010 MN: GA8 Video Solution
Consider the set of integers $\{1,2,3,\ldots,5000\}.$ The number of integers that is divisible by neither $3$ nor $4$ is $:$ $1668$ $2084$ $2500$ $2916$
asked
Apr 18, 2020
in
Numerical Ability
by
admin
(
573
points)

7
views
generalaptitude
numericalability
gate2010mn
factors
videosolution
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