CSAT 2021 | DDSQ Apr 14 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways
How many pairs of natural numbers are there such that the difference of whose squares is ? (2020)
How many pairs of natural numbers are there such that the difference of whose squares is ? (2020)
Which one of the following will have minimum change in its value if is added to both numerator and the denominator of the fractions
,
,
and
? (2020)
A digit is divisible by
but not divisible by
. Which one of the following is divisible by
? (2020)
If you have two straight sticks of length feet and
feet, what is the minimum length can you measure? (2020)
foot
foot
foot
feet
In the sum
for which digit does the symbol ⨂ stand? (2020)
Let ,
,
and
be natural numbers such that
Which one of the following is the largest natural number? (2020)
How many five-digit prime numbers can be obtained by using all the digits ,
,
,
and
without repetition of digits? (2020)
Zero
One
Nine
Ten
Let be a three-digit number, where
is not a multiple of
. Then
is not divisible by (2020)
How many zeroes are there at the end of the following product? (2020)
The average age of a teacher and three students is years. If all the three students are of same age and the difference between the age of the teacher and each student is
years, then what is the age of the teacher? (2020)
years
years
years
years