When the square of a number and the cube of a smaller number are added, the result is 593.
If the square of the smaller number exceeds the bigger number by 55. Find the difference of two numbers
OA - 1
OA - 1
how many integral values of x statisy the inequality x^4-29x^2+100
The square of the sum of the roots of a quadratic equation is thrice the product of its roots. The roots of the equation are
1. rational and equal.
2. rational and unequal.
3. non real.
4. Either (A) or (C).
P and Q are real numbers, not both of which are 0. How many real values of y satisfy the given equation?
1. 0
2. 1
3. 2
4. 1 or 2
find the present worth of a bill of Rs. 3380 due 2 years hence at 4% CI. also calculate true discount ?
Ive adoubt regarding instalments in case of SI. let us say we have to pay three instalments; x1; x2 nd x3 for a amount to be paid as P at rate r.. Can sumbdy plz tell how it is calculated.
In case of CI:
first instalment=x1
so principal after payment of first instalment=P-x1
x2=(P-x1)(1+r/100)
x3=(P-x1-x2)(1+r/100)..
Is it correct?
how to proceed in case of SI?
Find the number of common terms in the following two progressions: 4, 8, 16, 32------- upto 1000 terms and 5, 8, 11, 14, -------- upto 1000 terms.
13
11
6
5
a number of saplings are lying at a place by the side of a straight road. these are to be planned in a straight line at distance interval of 10 meter b/w two consecutive sapling. Vikas the country's greatest forester can carry only one sapling at a time and has to move back to the original point to get the next sapling. In this manner he covers a total of 1.32Km. How many sapling does he plant in the process if he ends at the starting point?
a)15
b)14
c)13
d)12
e)10
Let x = 1! + 2! + 3! + 4! + ... + 100!. Unit's digit ofx^x^x^x..(infinite) is
a. 3
b. 1
c. 1 or 3 depending on the number of times x appears in the power.
d. Can't be determined.
The crew of an 8 member rowing team is to be chosen from 12 men,of which 3 must row on one side only and 2 must row on the other side only.Find the number of ways of arranging the crew with 4 members on each side
a)40320
b)30240
c)60480
d)10080
e)None of these
Steps please
There are 5 balls of different colors and 5 boxes of colors similar to those of balls(each box is of different color). Find the no. of ways in which a ball is not placed in the box of its color?
are the sides of the right angled triangle in a semicircle(formed by the diameter) are in geometric progression?
In the figure above (not to scale), AF:FD = 3 : 1, BD : DC = 1 : 2, 
Find angle ABC.
90°
45°
70°
60°
In how many different ways three persons A, B, C having 6, 7 and 8 one rupee coins respectively can donate Rs.10 collectively.
Can anyone explain why the quadratic eq. is positive or negative when D
i have a small doubt pls help
No of ways of selecting 3 things out of 10 consecutive things such that no two are consecutive ?
i m attempting like this
case 1 : all 3 consecutive in (10-3+1)) ways= 8 ways
case 2 : when two are consecutive and other is distant= (10-2+1)=9 ways and third can be selected from remaining 7 ways so total is=63 ways.
total no ways = 10C3 = 120 ways
required no ways=(120-71)=49 ways, but answer is 56 , can smebody help where i m wrong
an urn contains 5 white and 8 black balls. Two successive drawings of 3 balls (without replacement) is done.Find the probability that the first draw gives 3 white balls and the second one gives 3 black balls.
The answer is given as (5C3/13C3)*(8C3/10C3). My question is why is it not (5C3*8C3)/13C6 .Please elaborate. I am guessing there are some repetations but I cant understand clearly.
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- 7/429
- 9/347
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If (a+1/a)^2 = 3 then 1+a^6+a^12+a^18+a^84+a^90+a^200+a^206 will be ??
A certain amount 'P' is borrowed at a simple interest of rate X% per annum. The borrowed money has
to be paid back in four annual installments. Each of the installments constitutes of a part of the principle
and the interest. The principle is paid in four equal installments along with the interest earned till the
date of a particular installment. If the total amount paid is Rs.300, then the principle and the rate of
interest per annum could be (The interest is always calculated only on the remaining principle.)
(1) P = Rs.250, X = 10% (2) P = Rs.200, X = 20% (3) P = Rs.225, X = 25%
(4) P = Rs.100, X = 40% (5) None of these
if 5@6 =61 and 8@1=164 then 7@9= ?
- 125
- 32
- 130
- 63
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