Find the sum....3/4+5/36+7/144+9/400.........+19/8100
With approach please.....
sry no OA...
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23. Let N = 1421 × 1423 × 1425. What is the remainder when N is divided by 12?
a. 0 b. 9 c. 3 d. 6
any shortcut to do dis?
Sam has forgotten his friend's seven-digit telephone number. He remembers the following: the first
three digits are either 635 or 674, the number is odd, and the number 9 appears once. If Sam were
to use a trial and error process to reach his friend, what is the minimum number of trials he has to
make before he can be certain to succeed?
a. 10,000 b. 2,430 c. 3,402 d. 3,006
10101010101..... 94 digits when divided by 375, leaves a remainder of -
- 260
- 20
- 10
- 350
0 voters
I know this is not the right group for this question, but can please anyone answer this. I really need it -
If a,b,c and d are the roots of the equation x^4-7x^2+5=0, then what is the product of the roots of the equation whose roots are all the SQUARE ROOTS of a,b,c and ?
- 25
- -(5^(1/2))
- 5
- 5^(1/2)
0 voters
how to calculate remainder when (10!+111) is divided by 143?
please provide explanation i don't have answer.
plus please throw some light on how to calculate the last 2 digits of a number?
how many two digit numbers are there which are one and half times larger than the product of their digits
- 1
- 0
- 3
- 2
0 voters
how many two digit numbers are there which are one and half times larger than the product of their digits
- 3
- 1
- 2
- 0
0 voters
Some numbers can be expressed as the sum of three of their factors. E.g. 12 can be expressed as the sum of 2, 4 and 6. How many other such numbers are there which are less than 100? please explain the approach...
- 1
- 16
- 7
- 15
- 2
0 voters
How to find number of prime number between two integers....for example how to find prime number between 100 to 1000???Plz help....
find the remainder of 12!^10!/10
- none of these
- 5
- 4
- 1
0 voters
Sam has forgotten his friend's seven-digit telephone number. He remembers the following: the first
three digits are either 635 or 674, the number is odd, and the number 9 appears once. If Sam were
to use a trial and error process to reach his friend, what is the minimum number of trials he has to
make before he can be certain to succeed?
a. 10,000 b. 2,430 c. 3,402 d. 3,006
23. Let N = 1421 — 1423 — 1425. What is the remainder when N is divided by 12?
a. 0 b. 9 c. 3 d. 6
/any shortcut to do dis?
1421*1423*1425/12
ans is 3 the remainder of above is 5*7*9/12
315/12=3
Sum of 1/3 + 3/5 + 5/7 + 7/9 + 9/11 + .......... upto 50 terms ??
guys plz explain its working also.
- 171650
- 171750
- 171850
- 171700
0 voters
How to find the no. of terms in a binomial expression and coefficient of individual powers??
eg: (1+x)^50.
find no of terms and coefficient of x^29.
If a number system,the product of 44 and 11 is 1034. The number 3111 of this system,when converted to the decimal number system becomes ?
If 4^3m-1 = 1+8^(2k+6), find k. show solutions pls.
If logy x + logy^2 x = 6, then x=y^n, find n. pls show solutions.
a gardener planted saplings in such a way that every row had as many saplings as every column had, if in all there were 729 saplings, then how many sapling were in each row?
number when divided by 5 and 7 successively,leaves reminder 2 and 4 respectively. find the reminder when the same number is divided by 35?
in an a.p series the 1st term is 1 and the last term 100.how many ap's can be formed with this criteria.please give the approach also