(a+b+2c)x2 + (2a-b-c)x + (c+a-2b) = 0
Please solve. not getting anywhere.
P is a set of all natural numbers with four factors such that sum of the factors,excluding the number itself is 31.find the sum of all the elements in P?
a) 125
b) 495
c) 716
d) 898
In how many ways can the word 'NATASHA' be arranged such that vowel does not start the word?
4 vehicles are travelling on a straight road with constant speed.the truck overtakes car at 2:00 pm . and then met scooter at 4 :00 PM and the motorcycle at 6 : 00 PM . the motorcycle met car at 7 :00 PM then it overtook scooter at 8:00 PM.. at what tym scooter and car meet ? 😁
A bag contains 6 white and 4 red balls. Three balls are drawn one by one with replacement. What is the probability that out of the three drawn, 2 balls are white and 1 is red?
In how many ways can the word 'NATASHA' be arranged such that vowel does not start the word?
How many words can be formed using letters of the word SPORADIC such that vowels and consonants are in alphabetical order?
How many numbers are coprime to 2304 and lie between 1000 and 2000 ?
Please post the soloution also
- 500
- 332
- 333
- 334
0 voters
A one rupee coin is placed on a table.The maximum number of a similar one rupee coins which can be placed on a table,around it,with each of them touching it and only two others is
- 8
- 6
- 10
- 4
0 voters
Let T be the set of integers {2, 12, 22, 32 ..., 542, 552} and S be a subset of T such that the sum of no two elements of S is divisible by 3. The maximum possible number of elements in S is?
3x + 4|y| = 33. How many integer values of (x, y) are possible...?
a) 6
b) 3
c) 4
d) more than 6
-@A
13x + 17y = 555, What will be the maximum of producy (x,y)
A circle is inscribed in a square and another circle is circumscribe in a square.What is the ratio of areas of inscribed circle to the circumscribed circle
2 arithmetic progressions with a1=7 and a2=5 with d1=6 and d2=8.How many terms are common to the first n terms of the series, if the sum of the nth term of the series is 9000?
P.s - any short method of doing this?
- 161
- 160
- 89
- 169
0 voters
log5log4log3(x^2-11x+1)= 0 , x>0 , find x.
-@A
How many numbers below 100 can be expressed as a difference of two perfect squares in only one way??
- 34
- 25
- 35
- 26
0 voters
THE price of a sugar is increased by 10%.By how much percent must a man reduces his consumption of sugar so as to not increase his expenditure??
- 8.08
- 9.50
- 7.06
- 9.09
0 voters
What is the co-efficient of a^11*b^3*c^6*d^10 in (a+b+c+d)^30
How many two digit numbers exist whose sum of digits is 13?