Approach pls
The number of non negative integral solutions of A+B+C=< 10 ?
- None of these
- 286
- 84
- 220
0 voters
8 one plz
A team is to be selected from ten person's A through J under the following constraints.
(i) Either I or J must be selected.
(ii) At most two among D, E and F can be selected.
(iii) At least one among A, B and C must be rejected.
(iv) Exactly one among G and H must be selected.
In how many ways can a team of 7 members be selected?
oa- 18
explaination peeps
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Find the coefficient of x^19 in the polynomial equation :(1+x^2+x^3+x^4)^21 Approach plz
What is the smallest no. Which when divided by 7,8,9 leaves a remainder of 2,4,6 respectively. Short method?
2 plz zzzz approach?
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no. of real roots of the equation x^6+4x^3-12=0 ?
oa-2
explaination ?
for how many positive integer value of x is the inequality x(x-2)^2(x-4)(x-6)^2(x-8)(x-10)^2 is less than zero
oa-2
shortcut method ?
. when sum of any quantities is constant, there product is maximum when they are equal.
example. if 3x+5y=15. find maximum value of x^2*y^3. here 3x+5y=15 => 3x/2 + 3x/2 + 5y/3 + 5y/3 + 5y/3 = 15.--------------1
as I said, when sum of any quantities is constant, there product is maximum when they are equal. here sum is constant. so when 3x/2 = 5y/3. we get maximum value of x^2*y^3. taking 3x/2 = 5y/3 putting it in 1, => 5(3x/2) = 15. =>x=2. and y = 9/5. answer is 2^2*(9/5)^3. generalizing it, how to find maximum value of x^m*y^n where ax+by=P. a,b,x,y>0 x^m*y^n is maximum when ax/m = by/ n = p/m+n 4. when the product of any quantity is constant, sum of the all the quantity is minimum, when they are equal. xy^3 = 64.
find minimum value of x+12y. we need to adjust x+12y,
accordingly. x+12y = x+ (12y/3)*3
now, x*(12y/3)^3= 64 *64 ( coz xy^3 = 64)-----------1 the product is constant. so the sum of the quantities will be minimum when quantities are equal. take x= 12y/3 putting it in 1, we get x= 8 =>12y/3 = 8, y = 2. minimum value of x+12y = 8+24 = 32.
generalizing it, how to find minimum value of ax+by where x^m*y^n=P a,b,x,y>0 ax+by is minimum when ax/m = by/n
basics######
For Even Numbers:
1) Any number of the form 4K+2 CANNOT be represented at all, hence 0 ways. For example Number 6 = 2*3 = 1*6 (So we don't get any combination for either Both Even or Both Odd), hence Integer numbers IS NOT POSSIBLE.
2) Any Prime factor Multiple of 4 is ALWAYS 1 way. For example : Number 8 = 2*4 = always 1 way. The reasoning behind is for prime number 2 when mutplied with 2 we can always break up into factors of Even numbers. Hence 4*2 we can always break up. And for odd prime numbers, we already have 2 twos in 4, so also we can break up into 1 ways into both even factors.
A man started driving at a constant speed, from the site of the blast, the moment he heard it.He heard the second blast after a time of 30 mins and 30 seconds .
If the second blast occured exactly 30 minutes after the first blast, how far was he from the site when he heard the second blast?
speed of sound= 330m/s
proper explaination peeps !!
##quant_mba_2016
'A' Shopkeeper buys 8kg of rice at Rs.10 per kg and some extra rice at Rs.20 per kg. He marks the selling price to make a 20% profit . His assistant takes over the shop in his absence and sells 10Kg of rice. But he gets confused with selling price and the total amount of rice brought. The next day, the shopkeeper sells the remaining rice at the correct selling price to make a 5% loss overall.
Que-1 How much rice did he buy in total ?
Que-2 How much loss did he incur ?
#quant_mba
if 0.237373737....is p/q
find value of p+q
The two altitudes of a triangle are 5 cm and 4 cm respectively.Find the range of the third altitude of the same triangle.
How many numbers greater than 3456 can be formed by using the digits 2, 3, 4, 5 and 6, such that the digits are not repeated
OA 206 approach please
a + b + c + d + e + f = 20, find the number of possible non-negative solutions such that a is greater than c, b greater than d, c greater than e and d greater than f?
Find the sum of the first 9 terms of S , where S = 3/4 + 5/36 + 7/144 ... Options are : 1) 80/81 2)119/121 3) 99/100 Need various approaches
How many 3 digit nos. less than 500 are neither divisible by 4 nor by 6 ?