(1000002)2 - (999998)2
1.2000000
2.1000000
3.4000000
4.4
(12a2 - 144a) / (a-12) = ?
1.12a
2.12a2
3.11a
4.144axa
(7x-49) / (x-7) =
1.x-7
2.x
3.7
4.7x
(8/Z)+(6/Z) x (40/Z) =? If Z=2
1.27
2.32
3.60
4.64
(9/a)+(21/a)x(36/a)=? If a = 3
1.80
2.120
3.100
4.87
(a+b)2 + (a-b)2 =
1.2(a2+b2)
2.2(a2+2b2)
3.4ab
4.4(a+b)
(a+b)2 + (b+c)2 =
1.a2 + 2b2 + 2ab + c2 + 2bc
2.a2 + b2 + c2 + 2ab + 2bc
3.a2 - b2 + c2 + 2ab + 2bc
4.2a2 + 2b2 + 2c2 + ab + bc
(a3+b)2 - (a3-b)2 +
1.?4a3b
2.0
3.(2ab)2
4.4a3b
(ab x (a+b)))/(1/a+1/b) = ? If a = 1 b = 2
1.3 ? 8
2.8 ? 4
3.11 ? 8
4.8 ? 2
(p2-q2) / (p+q) = 50 then p-q = ?
1.25
2.45
3.49
4.50
(x+y)2 + (y+z)2 =
1.x2+y2+z2+2xy+4yz
2.x2+y2+z2+4xy+2yz
3.x2+2y2+z2+2y(x+z)
4.x2+2y2+z2+2x(y+z)
(x+y)2 - (x-y)2 =
1.2(x2-y2)
2.2(x2+y2)
3.2x2-2y2-2xy
4.4xy
(x2yz + xy2z + xyz2) / xyz
1.xy+xy+yz
2.xy+yz+zx
3.x+y+z
4.x2+y2+z2
4x2 + 16x + 36 is equivalent to?
1.4(x2+4x+4)
2.4(x+4) (x+4)
3.4x (x+4+9)
4.4 (x2+4x+9)
7n2 - 7n + 5 - (3n + 7n2) =
1.5 + 10n
2.10n - 5
3.?10n + 5
4.45 - 10n
A man can row 1 km upstream in 20 minutes and downstream in 15 minutes. What is the speed of the current?
1.1 km/h
2.2 km/h
3.1/2 km/h
4.1/4 km/h
A man can row 4.5 km an hour in still water but takes twice as long to row up a stream as down it. What is the rate of stream in km/h
1.1.5
2.2.25
3.3
4.3.75
A man can row down a 10 mile stream in 2 hours and up in 5 hours. What is the average speed in miles per hour?
1.1 3?7
2.3 1?2
3.2 6?7
4.3
A man rowing a boat covers an average distance of 7.5 km/hr. What is the distance covered after 40 minutes:
1.5
2.10
3.20
4.15
A man rows 1 km upstream in 20 minutes and 1 km downstream in 15 minutes. What is his speed of rowing in still water?
1.2.5
2.3
3.3.5
4.4
A man travel in his yacht downstream at d knots and returns the same distance upstream at u knots. What is his average rate for the round trip if the length of stream is 1:
1.du/21
2.dtu/21
3.Idu/(d+2)
4.2du/(d+u)
can not be determined
1.4x2-30x+86
2.5x2-7x-56
3.?x2-34x-86
4.x2+34x+86
Divide (x-y)/(x+y) by (y+x)/(y-x) =
1.?1
2.0
3.1
4.?(x-y)2/(x+y)2
Find the value of the function x3+2+5 at = 2
1.15
2.17
3.18
4.19
If (1/x-x)2 = 50 what is the value of 1/x2+x2
1.2
2.48
3.52
4.can not be determined
If (5w)(5x) = 5y/5z what is z in terms of w x and y?
1.y/wx
2.y-w-x
3.w+x-y
4.y-wx
If 1/x+1/y=1/z and xy = z what is the average of x and y?
1.0
2.1?2
3.1
4.z/2
If 12/m = 15/m2 then m =
1.5?4
2.3?5
3.?5?3
4.?3?5
If 17-m = 12-n then m-n =?
1.5
2.4
3.3
4.2
If 5a=2b=40c what is the value of 8a+5b in terms of c?
1.10c
2.164c
3.52c
4.25c
If 9/a = 7/a2 then a = ?
1.7 ? 9
2.9 ? 7
3.7
4.9
If a = 3 b = -1 c = 2 which is true (I) a+b+c = 4 (II) 3a + 5b = 4 (III) 2c - 5a = 6
1.I only
2.II only
3.I and III
4.I and II
If a = p + prt they r = ?
1.(a-1) / t
2.(a-p) / pt
3.a-p-pt
4.a/t
If a man takes two hours to row 3 km upstream or 15 km downstream then the speed of current is:
1.1
2.2
3.3
4.4
If a x 51 x 48 x 54 = 16 x 17 x 18 then a =
1.1 ? 27
2.1 ? 250
3.25
4.27
If a2+b2 = 8 and (a-b)2 = 4 what is the value of ab?
1.1
2.2
3.?2
4.3
If a2-b2 = 21 and a2+b2=29 which of the following could be the value of ab? I- -10 II- 5?2 III- 10
1.I only
2.II only
3.III only
4.I and III only
If b = -3 and a = 2 then a2 + b2 + 2ab = ?
1.?17
2.?16
3.?7
4.16
If p+q = 4 q+r = -2 r+p=3 then p+q+r =?
1.2?5
2.5?2
3.6?2
4.5
If p=10/(q+2) what is value of pq is terms of p?
1.2(5-P)
2.10/p
3.3(p-5)/p
4.2(p-5)/p
If x = (p+q)/(p-q) then x-1 = ?
1.q/p-q
2.2q/(p+q)
3.2p(p-q)
4.2q/(p-q)
If x = 5 y=4 z=3 then which of the following is true? (I) x+y+z = 11 (II) x+y-z = -6 (III) x+Y+z = 12 (IV) -x+y-z = -4
1.I and II
2.III and IV
3.all
4.none
If x2 - y2 = 58 and x-y=4 what is the average of x and y?
1.13
2.27
3.2
4.3.6
Imran speed of rowing in still water is 9 km/h and he finds that it takes him twice as long to row up as to row down the river. Find the speed of water in the river.
1.3
2.3 km/h
3.1 km/h
4.1
Speed of water in certain river is 2 km/h and it takes a boat thrice as long to row up as to row down the river. Find the speed of the boat in still water.
1.10 km/h
2.8 km/h
3.6 km/h
4.4 km/h
Subtract 5x2-9x-10 from 8x2+10x-25
1.3x2 + x + 15
2.3x2 - 19x - 15
3.?3x2 - 19x + 15
4.13x2 + x - 35
The trinomial x2+x-20 is exactly divisible by:
1.x-5
2.x+4
3.x-10
4.x-4
What is the sum of 3x3 + 7x2 - 7 and 5x2+8x-9?
1.3x3 + 12x2 + 8x - 16
2.8x3 + 7x2 - 16
3.3x3 + 5x2 + 8x - 2
4.none
What is the value of a2-b2/a-b when a = 12.3 and b = 13.2?
1.30
2.25.5
3.20
4.37.6
Which of the following is equal to (z+1/z)2-(z-1/z)2?
1.0
2.4
3.1/z2-z2
4.2/z2-2z2